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1. Socio economic perspectives on fusion power for a sustainable future energy system

Author

Bustreo, C., Ben Ayed, N., Biberacher, M., Bongiovì, G., Börcsök, E., Čadenović, R., Cok, V., Colucci, G., De Marchi, E., Dongiovanni, D.N., Ferencz, Z., Geysmans, R., Giacometti, A., Gracceva, F., Jones, C.R., Kembleton, R., Kenens, J., Lamut, U., Lechon, Y., Lerede, D., Lopes Cardozo, Niek J., Meskens, G., von Müller, Alexander, Olahne Groma, V., Oltra, C., Orlando, M.T., Povh, J., Prades, A., Savoldi, L., Stankiewicz, P., Trotta, A., Turcanu, C., Vitiello, S., and Ward, S.H.

Published
2024
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8. DEMO design activity in Europe: Progress and updates

Author

Federici, G., Bachmann, C., Barucca, L., Biel, W., Boccaccini, L., Brown, R., Bustreo, C., Ciattaglia, S., Cismondi, F., Coleman, M., Corato, V., Day, C., Diegele, E., Fischer, U., Franke, T., Gliss, C., Ibarra, A., Kembleton, R., Loving, A., Maviglia, F., Meszaros, B., Pintsuk, G., Taylor, N., Tran, M.Q., Vorpahl, C., Wenninger, R., and You, J.H.

Published
2018
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10. Long term CO2-free power generation scenarios for Italy

Author

Giuliani U., Agostini M., Alotto P., Bustreo C., and Zollino G.

Subjects
CO2-free technologies
Abstract

Achieving carbon neutrality around 2050 is an unprecedent technological, economic and social challenge. It means changing the way energy is used, by means of more efficient technologies, increasing the electricity share in final consumption and introducing, in some sectors, new energy carriers such as hydrogen or synthetic fuels derived from it. Hydrogen in turn, in the long run, will have to be produced mainly by electrolysis. As a consequence, in spite of significant improvements expected in energy efficiency, electricity demand will be at least twice the present value. In Italy around 650 TWh against 320 TWh today. Making available, each hour of the year, the electrical power required by loads, for a total of 650 TWh, without any greenhouse gas emission, is a further challenge. Analyzing all possible scenarios, together with their technical, economic and social implications, in order to be able to implement the most convenient one, is a necessary condition to try to win it. This talk will present some power generation long term scenarios in Italy, that take into account the hourly generation curves of variable renewable sources and the hourly curve of electricity demand that can be expected over a whole calendar year, for a total of 650 TWh, to be satisfied by a mix of CO2-free technologies. The focus is on costs; electricity market rules determining prices are not considered. To measure the total cost of each kWh actually delivered to loads at the time of demand, a new parameter is proposed, called LCOTE, which takes into account the costs (capex and opex) of all generation and storage technologies, necessary to meet the demand in every hour of the year, levelised according to the usual IEA procedure. For each scenario, the optimal mix has been found that, under the assumed constraints, shows the minimum LCOTE. Due to the adoption, as for the grid, of the so called "copper plate" simplifying assumption, we didn't take into account the costs of the necessary upgrading of transmission and distribution networks, which would be higher in scenarios with larger renewable capacity. Nevertheless, the results show that LCOTE is lower for scenarios with a share of base-load generation, provided by either nuclear fission or fusion power plants. In addition, which is even more relevant, those scenarios need up to 3 times less renewable capacity, than a 100% renewable scenario, with a consequent similar land use reduction.

Published
2022

11. Status of the upgrade of RFX-mod2

Author

Marrelli L., Abate D., Agostinetti P., Agostini P., Aprile D., Auriemma F., Berton G., Bettini P., Bigi M., Boldrin M., Bolzonella T., Bonfiglio D., Bonotto M., Brombin M., Bustreo C., Candeloro V., Canton A., Cappello S., Carraro L., Cavallini C., Cavazzana R., Cordaro L., Dalla Palma M., Dal Bello S., Dan M., De Lorenzi A., De Masi G., De Nardi M., Di Giannatale G., Fadone M., Escande D.F., Fassina A., Ferro A., Ferron N., Fiorucci D., Franz P., Gaio E., Gambetta G., Gasparini F., Gnesotto F., Gobbin M., Grando L., Innocente P., Kryzhanovskyy A., Lorenzini R., Lunardon F., Maistrello A., Manduchi G., Manfrin S., Marchiori G., Marconato N., Martines E., Martini G., Martini S., Milazzo R., Momo B., Paccagnella R., Pavei M., Peruzzo S., Pigatto L., Pomaro N., Predebon I., Piovan R., Puiatti M.E., Recchia M., Rigoni A., Rizzetto D., Rizzolo A., Sattin F., Scarin P., Siragusa M., Sonato P., Spagnolo S., Spinicci L., Spizzo G., Spolaore M., Terranova D., Tinti P., Valisa M., Verando M., Vianello N., Vivenzi N., Voltolina D., Zanca P., Zaniol B., Zanotto L., and Zuin M.

Subjects
RFX-mod2 upgrade, RFX-mod2
Abstract

The RFX-mod Reversed Field Pinch device passive boundary is being improved: - Drastic reduction of resistivity of first shell surrounding the plasma; - Reduction of plasma-stabilizing conductor distance from b/a=1.11 to b/a=1.04. The RFX-mod core upgrades consist of: - Removal of Inconel vacuum vessel; - Modification of the stainless steel Support Structure to ensure Vacuum Tightness (VTSS); - Modification of the copper Passive Stabilizing Shell (PSS); - Installation of upgraded sensors inside the vacuum vessel. Initial main points of investigation in the new device are discussed.

Published
2021

12. Double poloidal field system with superconducting and conventional copper coils for induced high loop voltage: a new concept and a feasibility study for a RFP FFHR

Author

Piovan R., Agostinetti P., Bustreo C., Cavazzana R., Escande D.E., Gaio E., Lunardon F., Maistrello A., Marrelli L., Puiatti M.E., Valisa M., Zollino G., and Zuin M.

Subjects
Physics::Plasma Physics, copper coils, Poloidal field system, superconduting coils, RFP FFHR, high loop voltages
Abstract

A critical point for the use of the superconducting magnets in Reversed Field Pinch (RFP) fusion reactors is represented by their limitations in the allowed magnetic field derivative, which poses constraints in the maximum induced loop voltage for the gas breakdown and the initial rise of the plasma current. Also in Tokamaks the losses in the superconducting coils related to magnetic field variation need to be carefully considered. On the other hand the use of superconductors for the poloidal field magnets is mandatory in a fusion reactor due to the high volt-seconds required for plasma current rise, the flat-top in pulsed machine and to guarantee the plasma equilibrium. A new concept is proposed for a RFP reactor with a mixed use of different coils: some made with superconductors and others with conventional copper coils operating at low temperature (about 80- 100 K). The proposed solution allows to obtain high loop voltage in the start-up phase, followed by a reduced voltage in the following rise and flat-top plasma current maintaining the level of magnetic field derivative in the superconductors within the allowed limits. The basic principle is firstly discussed on the basis of a simplified model that allows to understand the coils - plasma operation and the evolution of the magnetic field into the superconducting coils. This new concept is then utilized for a feasibility study of the poloidal magnetic system of a pilot neutron source based on a Reversed Field Pinch (RFP) as fusion core. The preliminary design shows the feasibility of this mixed solution for the poloidal field coils of a RFP machine (R=4, a=0.8) with a plasma current of 12 MA, with a high initial loop voltage (100-200 V for about half second) for a fast rise of the plasma current with a reduced magnetic field derivative in the superconductors, less than 2 T/s.

Published
2021

13. Perspectives of Fusion-Fission Hybrid Systems with the Reversed Field Pinch as a neutron source

Author

Piovan R., Agostinetti P., Bustreo C., Cavazzana R., Escande D.F., Gaio E., Lunardon F., Maistrello A., Puiatti M.E., Valisa M., Zollino G., and Zuin M.

Subjects
FFHR, RFP, Fusion-Fission Hybrid Reactor, Reversed Field Pinch
Abstract

Fusion-Fission Hybrid Reactor (FFHR), neutron-producing fusion core surrounded by a fission blanket, benefits from a renovated interest because of (i) its potentiality to address energy production before the availability of pure fusion reactors, (ii) its capability of fission fuel fertilization and (iii) waste management. The core fusion reactor of a FFHR requires less stringent performances respect to DEMO or the fusion power plants: it has to produce less than a hundred of MW of fusion power with Q = 1-5 and comes with a reduced fast neutron wall load, sustainable by the available nuclear material. While the Reversed Field Pinch (RFP) has yet an energy confinement too low for a high Q reactor, it is an alternative configuration to tokamak and stellarator for this application. Its disruption-free configuration, the need of a much weaker toroidal magnetic field coils and the capability of reaching thermonuclear temperatures without additional heating, but only by ohmic heating (due to no intrinsic plasma current limit and the strong winding of current lines due to the low q values), are significant advantages. New studies are in progress in order to revisit the status and the potentiality of the RFP as a fusion core in FFHR, taking into account the recent progress and expected improvement in RFP physics brought by the results of the RFX-mod experiment (R=2, a=0.46, Ip=2MA) and its underway upgrade. Scaling from the obtained experimental results opens the possibility, with increased machine size and plasma current, to realize a more robust and simple fusion neutron source respect to the other considered solutions; starting from these result, the possibility to realize a preliminary pilot experiment with a RFP (R=4m, a=0.8m, Ip=12-14MA) as a simplified neutron fusion source is in progress.

Published
2020

14. Perspective of a Reversed Field Pinch as Fusion Core for Neutron Generation

Author

Cavazzana R., Piovan R., Bustreo C., Zuin M., Puiatti M.E., Valisa M., Bettini P., Zollino G., and Casagrande R.

Subjects
FFHR, RFX-Mod, Physics::Plasma Physics, RFP, Fusion-Fission Hybrid Reactor, Reversed Field Pinch
Abstract

The operation of RFX-mod, the largest Reversed Field Pinch (RFP) experiment, with plasma currents up to 2 MA demonstrated a substantial increase of the electron and ion temperatures versus the plasma current. The observed trend outlines a path toward a significant D-T fusion process yield in larger devices with higher plasma current [1]. Such a device, in which the plasma is purely ohmically heated, could act as an efficient, robust and cheap fusion neutron source with a neutron rate to be used as the basis for a Fusion-Fission Hybrid Reactor (FFHR). Its peculiar features can be summarized as: ohmically heated plasma, toroidal field winding rated for a very low magnetic field (two orders of magnitude lower than in tokamaks), robust and cheap construction, simple access for Remote Handling and easy maintenance. The neutron production, as required in a hybrid reactor, is guaranteed by a continuously pulsed operation without the need of additional current drive systems. A realistic concept consist of an inductively operated RFP with major radius R=6 m, minor radius a=1 m and a current of 20 MA. The expected plasma temperature would be in the range 10-15 keV, leading to a neutron production rate in the range of 1019 n/s and a wall neutron load of 0.2 MW/m2.

Published
2019

15. Status and Perspective of a Reversed Field Pinch as Fusion Core in a Fusion-Fission Hybrid Reactor

Author

Piovan R., Agostinetti P., Bustreo C., Cavazzana R., Escande D., Gaio E., Lunardon F., Maistrello A., Puiatti M.E., Valisa M., Zollino G., and Zuin M.

Subjects
Experimental devices, Power and Control, Next step devices and power plants
Abstract

Fusion-fission hybrid reactors (FFHR), which consist of a neutron-producing fusion core surrounded by a fission blanket, keep a sustained interest because of their potential to address energy production before the availability of pure fusion reactors and also because of their capability of fuel supply and waste management. The U.S. Department of Energy (DOE) sponsored a workshop in 2009 in order to assess the potentiality of fusion-fission reactors and, among the others alternative to the Tokamak as fusion core, the Reversed Field Pinch (RFP) was considered, even if not on the same timeline of the Tokamak. On the other hand, the interest in the RFP as fusion core resides, inter alia, in its possibility to reach ignition in a pure ohmic way with a "light" toroidal field winding, which simplifies significantly the hybrid reactor layout and operation and strongly decreases costs with respect to other fusion core solutions. New studies are now in progress in order to revisit the status and the potentiality of the RFP as fusion core in FFHR, taking into account (i) the recent progress in RFP physics brought by the results of the RFX-mod experiment (R=2, a=0.46, Ip=2MA), mainly about MHD modes control, (ii) the expected performance improvements resulting from the ongoing upgrade of the machine. Starting from RFX-mod results and scaling laws, and considering the estimated improvements of the performances derived from the machine enhancements underway, the possibility to realize a preliminary pilot experiment in which a RFP is the neutron fusion source is analysed. The research needs for this advanced solution are updated with respect to the 2009 workshop.

Published
2019

16. Overview of the DEMO staged design approach in Europe

Author

Federici, G., Bachmann, C., Barucca, L., Baylard, C., Biel, W., Boccaccini, L.V., Bustreo, C., Ciattaglia, S., Cismondi, F., Corato, V., Day, C., Diegele, E., Franke, T., Gaio, E., Gliss, C., Haertl, T., Ibarra, A., Holden, J., Keech, G., Kembleton, R., Loving, A., Maviglia, F., Morris, J., Meszaros, B., Moscato, I., Pintsuk, G., Siccinio, M., Taylor, N., Tran, M.Q., Vorpahl, C., Walden, H., You, J.H., Federici, G., Bachmann, C., Barucca, L., Baylard, C., Biel, W., Boccaccini, L.V., Bustreo, C., Ciattaglia, S., Cismondi, F., Corato, V., Day, C., Diegele, E., Franke, T., Gaio, E., Gliss, C., Haertl, T., Ibarra, A., Holden, J., Keech, G., Kembleton, R., Loving, A., Maviglia, F., Morris, J., Meszaros, B., Moscato, I., Pintsuk, G., Siccinio, M., Taylor, N., Tran, M.Q., Vorpahl, C., Walden, H., and You, J.H.

Abstract

This paper describes the status of the pre-conceptual design activities in Europe to advance the technical basis of the design of a DEMOnstration Fusion Power Plant (DEMO) to come in operation around the middle of this century with the main aims of demonstrating the production of few hundred MWs of net electricity, the feasibility of operation with a closedtritium fuel cycle, and maintenance systems capable of achieving adequate plant availability. This is expected to benefit as much as possible from the ITER experience, in terms of design, licensing, and construction. Emphasis is on an integrated design approach, based on system engineering, which provides a clear path for urgent R&D and addresses the main design integration issues by taking account critical systems interdependencies and inherent uncertainties of important design assumptions (physics and technology). A design readiness evaluation, together with a technology maturation and down selection strategy are planned through structured and transparent Gate Reviews. By embedding industry experience in the design from the beginning it will ensure that early attention is given to technology readiness and industrial feasibility, costs, maintenance, power conversion, nuclear safety and licensing aspects.

Published
2019
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17. A fusion-fission hybrid reactor model for research and applications

Author

Panza F., Bettini P., Bustreo C., Casagrande R., Cavazzana R., Escande D., Piovan R., Puiatti M.E., Ricco G., Ripani M., Valisa M., Zollino G., and Zuin M.

Subjects
FFHR, RFP, Fusion-Fission Hybrid Reactor, Reversed Field Pinch
Abstract

A hybrid fusion-fission reactor based on a Reversed Field Pinch configuration has been studied. The fusion core generating 140MWth fusion power via D-T reactions produces 4.97E+19 n/s. The areas around the torus are composed of tritium breeding regions and of a modular subcritical fission blanket (keff~0.97, P~1.24 GWth), sustained by fusion neutrons, spaced out by two intermediate regions that can be used for studying fast and slow transmutations and radio-pharmaceuticals production. The results corroborate the interest for this model due to the simple design of the fusion reactor, the high accessibility to the blankets for maintenance and the multiple applications.

Published
2018

18. Preliminary integrated design of a RFP fusion core and a hybrid reactor blanket

Author

Agostinetti P., Bettini P., Bustreo C., Cavazzana R., Escande D.F., Osipenko M., Panza F., Piovan R., Puiatti M.E., Ricco G., Ripani M., Valisa M., Zollino G., and Zuin M.

Subjects
Breeding Blanket, Physics::Plasma Physics, RFP, Fusion Neutron Sources
Abstract

The Reversed Field Pinch (RFP) is recognized as an attractive fast neutron source from D-T fusion in hybrid reactors due to the possibility to reach fusion condition with ohmic heating only and to the intrinsic simplicity of the machine (no large toroidal field coils, no additional heating systems, no divertor). In previous studies, a continuous pulsed operation, able to guarantee a quasicontinuous 14.1 MeV neutron production, has been identified, utilizing a purely inductive plasma rise and sustainment. Scaling laws, derived from the experimental results obtained in RFX-mod, allow predicting the plasma temperature and the loop voltage vs. the machine sizes and plasma current level. Considering these laws and on the basis of a preliminary poloidal coil design, it was investigated the relationship between the machine size and the attainable stored volt-second. The obtainable plasma parameters (current, loop voltage, pulse duration and temperature) with reasonable machine sizes, R=6 and a=1 for examples, match very well the performances required for an hybrid reactor in terms of neutron flux and machine stresses. Based on this configuration a blanket, surrounding the torus, composed by a lithium-lead eutectic mixture for tritium production and a three fission sectors fuelled by steel rods containing Pu+MA (60%)-Zr (40%) embedded in liquid lead was studied and designed. The nuclear analysis of this simple configuration shows the possibility to operate at keff ~ 0.97 corresponding to a total fission power of about 1.2 GW. Improvements of the RFX-mod machine are underway, introducing a new load assembly with reduced distance between plasma and conducting shell which will provide a smoother magnetic boundary. On the basis of present experimental data and model simulations, this is expected to produce an enhancement of the plasma confinement properties, confirming or even improving the present scaling laws towards higher currents and increasing the attractiveness of this fusion-fission reactor solution. This contribution, which will present in detail the above summarized aspects, is aimed at proposing on this basis a robust, innovative, highly reliable FFHR.

Published
2018

19. Overview of the DEMO staged design approach in Europe

Author

Federici, G., primary, Bachmann, C., additional, Barucca, L., additional, Baylard, C., additional, Biel, W., additional, Boccaccini, L.V., additional, Bustreo, C., additional, Ciattaglia, S., additional, Cismondi, F., additional, Corato, V., additional, Day, C., additional, Diegele, E., additional, Franke, T., additional, Gaio, E., additional, Gliss, C., additional, Haertl, T., additional, Ibarra, A., additional, Holden, J., additional, Keech, G., additional, Kembleton, R., additional, Loving, A., additional, Maviglia, F., additional, Morris, J., additional, Meszaros, B., additional, Moscato, I., additional, Pintsuk, G., additional, Siccinio, M., additional, Taylor, N., additional, Tran, M.Q., additional, Vorpahl, C., additional, Walden, H., additional, and You, J.H., additional

Published
2019
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20. Summary of the 2nd International Workshop on Environmental, Safety and Economic Aspects of Fusion Power

Author

Wu, Y., Chen, Z., Meng, Z., Hu, L., Gonzalez de Vicente, S.M., Merrill, B., Panayotov, D., Zucchetti, M., Kolbasov, B., van Houtte, D., Bustreo, C., Kim, Y., Kim, K., Maisonnier, D., Clark, D., Kalashnikov, A., and Sakamoto, Yoshiteru

Abstract

The 2nd International Workshop on Environmental, Safety and Economic Aspects of Fusion Power (ESEFP) was held on 23 September 2017 in Kyoto, Japan. The workshop was initiated by the International Energy Agency Technology Collaboration Program on ESEFP. The workshop was well attended with approximately forty participants representing fifteen institutions in eight countries. The presentations covered safety issues and environmental impacts, availability improvement and risk control and socio-economic aspects of fusion power. Quantitative safety assessment of fusion reactors was discussed in depth with the consensus output presented as a plenary presentation at the 13th International Symposium on Fusion Nuclear Technology (ISFNT-13). The next workshop is planned to be held in conjunction with the ISFNT-14 in 2019.

Published
2019

21. Summary of the 2nd International Workshop on Environmental, Safety and Economic Aspects of Fusion Power

Author

Wu, Y., primary, Chen, Z., additional, Meng, Z., additional, Hu, L., additional, Gonzalez de Vicente, S.M., additional, Merrill, B., additional, Panayotov, D., additional, Zucchetti, M., additional, Kolbasov, B., additional, van Houtte, D., additional, Bustreo, C., additional, Kim, Y., additional, Sakamoto, Y., additional, Kim, K., additional, Maisonnier, D., additional, Clark, D., additional, Kalashnikov, A., additional, and Subbotin, M., additional

Published
2018
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22. Overview of the RFX-mod fusion science activity

Author

Zuin, M., Dal Bello, S., Marrelli, L., Puiatti, M. E., Agostinetti, P., Agostini, M., Antoni, V., Auriemma, F., Barbisan, M., Barbui, T., Baruzzo, M., Belli, F., Bettini, P., Bigi, M., Bilel, R., Boldrin, M., Bolzonella, T., Bonfiglio, D., Brombin, M., Buffa, A., Bustreo, C., Canton, A., Cappello, S., Carraro, L., Cavazzana, R., Cester, D., Chacon, L., Chitarin, G., Cooper, W. A., Cordaro, L., Palma, M. Dalla, Deambrosis, S., Delogu, R., De Lorenzi, A., De Masi, G., Dong, J. Q., Escande, D. F., Fassina, A., Felici, F., Ferro, A., Finotti, C., Franz, P., Frassinetti, Lorenzo, Gaio, E., Ghezzi, F., Giudicotti, L., Gnesotto, F., Gobbin, M., Gonzalez, W. A., Grando, L., Guo, S. C., Hanson, J. D., Hirshman, S. P., Innocente, P., Jackson, J. L., Kiyama, S., Komm, M., Kudlacek, O., Laguardia, L., Li, C., Liu, B., Liu, S. F., Liu, Y. Q., Lopez-Bruna, D., Lorenzini, R., Luce, T. C., Luchetta, A., Maistrello, A., Manduchi, G., Mansfield, D. K., Marchiori, G., Marconato, N., Marcuzzi, D., Martin, P., Martines, E., Martini, S., Mazzitelli, G., McCormack, O., Miorin, E., Momo, B., Moresco, M., Narushima, Y., Okabayashi, M., Paccagnella, R., Patel, N., Pavei, M., Peruzzo, S., Pilan, N., Pigatto, L., Piovan, R., Piovesan, P., Piron, C., Piron, L., Predebon, I., Pucella, G., Rea, C., Recchia, M., Rizzolo, A., Rostagni, G., Ruset, C., Sajo-Bohus, L., Sakakita, H., Sanchez, R., Sarff, J. S., Sattin, F., Scarin, P., Schmitz, O., Schneider, W., Siragusa, M., Sonato, P., Spada, E., Spagnolo, S., Spolaore, M., Spong, D. A., Spizzo, G., Stevanato, L., Suzuki, Y., Taliercio, C., Terranova, D., Tudisco, O., Urso, G., Valente, M., Valisa, M., Vallar, M., Veranda, M., Vianello, N., Villone, F., Vincenzi, P., Visona, N., White, R. B., Xanthopoulos, P., Xu, X. Y., Yanovskiy, V., Zamengo, A., Zanca, P., Zaniol, B., Zanotto, L., Zhang, Y., Zilli, E., Zuin, M., Dal Bello, S., Marrelli, L., Puiatti, M. E., Agostinetti, P., Agostini, M., Antoni, V., Auriemma, F., Barbisan, M., Barbui, T., Baruzzo, M., Belli, F., Bettini, P., Bigi, M., Bilel, R., Boldrin, M., Bolzonella, T., Bonfiglio, D., Brombin, M., Buffa, A., Bustreo, C., Canton, A., Cappello, S., Carraro, L., Cavazzana, R., Cester, D., Chacon, L., Chitarin, G., Cooper, W. A., Cordaro, L., Palma, M. Dalla, Deambrosis, S., Delogu, R., De Lorenzi, A., De Masi, G., Dong, J. Q., Escande, D. F., Fassina, A., Felici, F., Ferro, A., Finotti, C., Franz, P., Frassinetti, Lorenzo, Gaio, E., Ghezzi, F., Giudicotti, L., Gnesotto, F., Gobbin, M., Gonzalez, W. A., Grando, L., Guo, S. C., Hanson, J. D., Hirshman, S. P., Innocente, P., Jackson, J. L., Kiyama, S., Komm, M., Kudlacek, O., Laguardia, L., Li, C., Liu, B., Liu, S. F., Liu, Y. Q., Lopez-Bruna, D., Lorenzini, R., Luce, T. C., Luchetta, A., Maistrello, A., Manduchi, G., Mansfield, D. K., Marchiori, G., Marconato, N., Marcuzzi, D., Martin, P., Martines, E., Martini, S., Mazzitelli, G., McCormack, O., Miorin, E., Momo, B., Moresco, M., Narushima, Y., Okabayashi, M., Paccagnella, R., Patel, N., Pavei, M., Peruzzo, S., Pilan, N., Pigatto, L., Piovan, R., Piovesan, P., Piron, C., Piron, L., Predebon, I., Pucella, G., Rea, C., Recchia, M., Rizzolo, A., Rostagni, G., Ruset, C., Sajo-Bohus, L., Sakakita, H., Sanchez, R., Sarff, J. S., Sattin, F., Scarin, P., Schmitz, O., Schneider, W., Siragusa, M., Sonato, P., Spada, E., Spagnolo, S., Spolaore, M., Spong, D. A., Spizzo, G., Stevanato, L., Suzuki, Y., Taliercio, C., Terranova, D., Tudisco, O., Urso, G., Valente, M., Valisa, M., Vallar, M., Veranda, M., Vianello, N., Villone, F., Vincenzi, P., Visona, N., White, R. B., Xanthopoulos, P., Xu, X. Y., Yanovskiy, V., Zamengo, A., Zanca, P., Zaniol, B., Zanotto, L., Zhang, Y., and Zilli, E.

Abstract

This paper reports the main recent results of the RFX-mod fusion science activity. The RFX-mod device is characterized by a unique flexibility in terms of accessible magnetic configurations. Axisymmetric and helically shaped reversed-field pinch equilibria have been studied, along with tokamak plasmas in a wide range of q(a) regimes (spanning from 4 down to 1.2 values). The full range of magnetic configurations in between the two, the so-called ultra-low q ones, has been explored, with the aim of studying specific physical issues common to all equilibria, such as, for example, the density limit phenomenon. The powerful RFX-mod feedback control system has been exploited for MHD control, which allowed us to extend the range of experimental parameters, as well as to induce specific magnetic perturbations for the study of 3D effects. In particular, transport, edge and isotope effects in 3D equilibria have been investigated, along with runaway mitigations through induced magnetic perturbations. The first transitions to an improved confinement scenario in circular and D-shaped tokamak plasmas have been obtained thanks to an active modification of the edge electric field through a polarized electrode. The experiments are supported by intense modeling with 3D MHD, gyrokinetic, guiding center and transport codes. Proposed modifications to the RFX-mod device, which will enable further contributions to the solution of key issues in the roadmap to ITER and DEMO, are also briefly presented., QC 20170802

Published
2017
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23. Overview of the RFX-mod fusion science activity

Author

Zuin, M, DAL BELLO, S, Marrelli, L, Puiatti, M, Agostinetti, P, Agostini, M, Antoni, V, Auriemma, F, Barbisan, M, Barbui, T, Baruzzo, M, Belli, F, Bettini, P, Bigi, M, Bilel, R, Boldrin, M, Bolzonella, T, Bonfiglio, D, Brombin, M, Buffa, A, Bustreo, C, Canton, A, Cappello, S, Carraro, L, Cavazzana, R, Cester, D, Chacon, L, Chitarin, G, Cooper, W, Cordaro, L, DALLA PALMA, M, Deambrosis, S, Delogu, R, De Lorenzi, A, DE MASI, G, Dong, J, Escande, D, Fassina, A, Felici, F, Ferro, A, Finotti, C, Franz, P, Frassinetti, L, Gaio, E, Ghezzi, F, Giudicotti, L, Gnesotto, F, Gobbin, M, Gonzalez, W, Grando, L, Guo, S, Hanson, J, Hirshman, S, Innocente, P, Jackson, J, Kiyama, S, Komm, M, Kudlacek, O, Laguardia, A, Li, C, Liu, B, Liu, S, Liu, Y, López Bruna, D, Lorenzini, R, Luce, T, Luchetta, A, Maistrello, A, Manduchi, G, Mansfield, D, Marchiori, G, Marconato, N, Marcuzzi, D, Martin, P, Martines, E, Martini, S, Mazzitelli, G, Mccormack, O, Miorin, E, Momo, B, Moresco, M, Narushima, Y, Okabayashi, M, Paccagnella, R, Patel, N, Pavei, M, Peruzzo, S, Pilan, N, Pigatto, L, Piovan, R, Piovesan, P, Piron, C, Piron, L, Predebon, I, Pucella, G, Rea, C, Recchia, M, Rizzolo, A, Rostagni, G, Ruset, C, Sajò Bohus, L, Sakakita, H, Sanchez, R, Sarff, J, Sattin, F, Scarin, P, Schmitz, O, Schneider, W, Siragusa, M, Sonato, P, Spada, E, Spagnolo, S, Spolaore, M, Spong, D, Spizzo, G, Stevanato, L, Suzuki, Y, Taliercio, C, Terranova, D, Tudisco, O, Urso, G, Valente, M, Valisa, M, Vallar, M, Veranda, M, Vianello, N, Villone, F, Vincenzi, P, Visonà, N, White, R, Xanthopoulos, P, Xu, X, Yanovskiy, V, Zamengo, A, Zanca, P, Zaniol, B, Zanotto, L, Zhang, Y, Zilli, E, ZUIN, MATTEO, DAL BELLO, SILVIA, MARRELLI, LIONELLO, Puiatti, M. E., AGOSTINETTI, PIERO, AGOSTINI, MATTEO, ANTONI, VANNI, AURIEMMA, FULVIO, BARBISAN, MARCO, BARBUI, TULLIO, BARUZZO, MATTEO, Belli, F., BETTINI, PAOLO, Bigi, M., Bilel, R., Boldrin, M., BOLZONELLA, TOMMASO, BONFIGLIO, DANIELE, BROMBIN, MATTEO, BUFFA, ANTONIO, BUSTREO, CHIARA, CANTON, ALESSANDRA MARIA, CAPPELLO, SUSANNA, Carraro, L., Cavazzana, R., CESTER, DAVIDE, Chacon, L., CHITARIN, GIUSEPPE, Cooper, W. A., CORDARO, LUIGI, DALLA PALMA, MAURO, DEAMBROSIS, SILVIA MARIA, Delogu, R., De Lorenzi, A., DE MASI, GIANLUCA, Dong, J. Q., Escande, D. F., FASSINA, ALESSANDRO, Felici, F., Ferro, A., FINOTTI, CLAUDIO, Franz, P., FRASSINETTI, LORENZO, Gaio, E., GHEZZI, FEDERICO, GIUDICOTTI, LEONARDO, GNESOTTO, FRANCESCO, GOBBIN, MARCO, GONZALEZ, WINDER ALEXANDER, GRANDO, LUCA, Guo, S. C., Hanson, J. D., Hirshman, S. P., Innocente, P., Jackson, J. L., Kiyama, S., Komm, M., KUDLACEK, ONDREJ, LAGUARDIA, ANNA LUCIA, Li, C., Liu, B., Liu, S. F., Liu, Y. Q., López Bruna, D., Lorenzini, R., Luce, T. C., LUCHETTA, ADRIANO FRANCESCO, MAISTRELLO, ALBERTO, MANDUCHI, GABRIELE, Mansfield, D. K., Marchiori, G., MARCONATO, NICOLO', Marcuzzi, D., MARTIN, PIERO, MARTINES, EMILIO, MARTINI, STEFANO, Mazzitelli, G., Mccormack, O., Miorin, E., MOMO, BARBARA, MORESCO, MAURIZIO, Narushima, Y., Okabayashi, M., Paccagnella, R., Patel, N., Pavei, M., Peruzzo, S., Pilan, N., Pigatto, L., Piovan, R., Piovesan, P., Piron, C., Piron, L., Predebon, I., Pucella, G., Rea, C., Recchia, M., Rizzolo, A., Rostagni, G., Ruset, C., Sajò Bohus, L., Sakakita, H., Sanchez, R., Sarff, J. S., Sattin, F., Scarin, P., Schmitz, O., Schneider, W., Siragusa, M., Sonato, P., Spada, E., Spagnolo, S., Spolaore, M., Spong, D. A., Spizzo, G., Stevanato, L., Suzuki, Y., Taliercio, C., Terranova, D., Tudisco, O., Urso, G., Valente, M., Valisa, M., Vallar, M., Veranda, M., Vianello, N., Villone, F., Vincenzi, P., Visonà, N., White, R. B., Xanthopoulos, P., Xu, X. Y., Yanovskiy, V., Zamengo, A., Zanca, P., Zaniol, B., Zanotto, L., Zhang, Y., Zilli, E., Zuin, M, DAL BELLO, S, Marrelli, L, Puiatti, M, Agostinetti, P, Agostini, M, Antoni, V, Auriemma, F, Barbisan, M, Barbui, T, Baruzzo, M, Belli, F, Bettini, P, Bigi, M, Bilel, R, Boldrin, M, Bolzonella, T, Bonfiglio, D, Brombin, M, Buffa, A, Bustreo, C, Canton, A, Cappello, S, Carraro, L, Cavazzana, R, Cester, D, Chacon, L, Chitarin, G, Cooper, W, Cordaro, L, DALLA PALMA, M, Deambrosis, S, Delogu, R, De Lorenzi, A, DE MASI, G, Dong, J, Escande, D, Fassina, A, Felici, F, Ferro, A, Finotti, C, Franz, P, Frassinetti, L, Gaio, E, Ghezzi, F, Giudicotti, L, Gnesotto, F, Gobbin, M, Gonzalez, W, Grando, L, Guo, S, Hanson, J, Hirshman, S, Innocente, P, Jackson, J, Kiyama, S, Komm, M, Kudlacek, O, Laguardia, A, Li, C, Liu, B, Liu, S, Liu, Y, López Bruna, D, Lorenzini, R, Luce, T, Luchetta, A, Maistrello, A, Manduchi, G, Mansfield, D, Marchiori, G, Marconato, N, Marcuzzi, D, Martin, P, Martines, E, Martini, S, Mazzitelli, G, Mccormack, O, Miorin, E, Momo, B, Moresco, M, Narushima, Y, Okabayashi, M, Paccagnella, R, Patel, N, Pavei, M, Peruzzo, S, Pilan, N, Pigatto, L, Piovan, R, Piovesan, P, Piron, C, Piron, L, Predebon, I, Pucella, G, Rea, C, Recchia, M, Rizzolo, A, Rostagni, G, Ruset, C, Sajò Bohus, L, Sakakita, H, Sanchez, R, Sarff, J, Sattin, F, Scarin, P, Schmitz, O, Schneider, W, Siragusa, M, Sonato, P, Spada, E, Spagnolo, S, Spolaore, M, Spong, D, Spizzo, G, Stevanato, L, Suzuki, Y, Taliercio, C, Terranova, D, Tudisco, O, Urso, G, Valente, M, Valisa, M, Vallar, M, Veranda, M, Vianello, N, Villone, F, Vincenzi, P, Visonà, N, White, R, Xanthopoulos, P, Xu, X, Yanovskiy, V, Zamengo, A, Zanca, P, Zaniol, B, Zanotto, L, Zhang, Y, Zilli, E, ZUIN, MATTEO, DAL BELLO, SILVIA, MARRELLI, LIONELLO, Puiatti, M. E., AGOSTINETTI, PIERO, AGOSTINI, MATTEO, ANTONI, VANNI, AURIEMMA, FULVIO, BARBISAN, MARCO, BARBUI, TULLIO, BARUZZO, MATTEO, Belli, F., BETTINI, PAOLO, Bigi, M., Bilel, R., Boldrin, M., BOLZONELLA, TOMMASO, BONFIGLIO, DANIELE, BROMBIN, MATTEO, BUFFA, ANTONIO, BUSTREO, CHIARA, CANTON, ALESSANDRA MARIA, CAPPELLO, SUSANNA, Carraro, L., Cavazzana, R., CESTER, DAVIDE, Chacon, L., CHITARIN, GIUSEPPE, Cooper, W. A., CORDARO, LUIGI, DALLA PALMA, MAURO, DEAMBROSIS, SILVIA MARIA, Delogu, R., De Lorenzi, A., DE MASI, GIANLUCA, Dong, J. Q., Escande, D. F., FASSINA, ALESSANDRO, Felici, F., Ferro, A., FINOTTI, CLAUDIO, Franz, P., FRASSINETTI, LORENZO, Gaio, E., GHEZZI, FEDERICO, GIUDICOTTI, LEONARDO, GNESOTTO, FRANCESCO, GOBBIN, MARCO, GONZALEZ, WINDER ALEXANDER, GRANDO, LUCA, Guo, S. C., Hanson, J. D., Hirshman, S. P., Innocente, P., Jackson, J. L., Kiyama, S., Komm, M., KUDLACEK, ONDREJ, LAGUARDIA, ANNA LUCIA, Li, C., Liu, B., Liu, S. F., Liu, Y. Q., López Bruna, D., Lorenzini, R., Luce, T. C., LUCHETTA, ADRIANO FRANCESCO, MAISTRELLO, ALBERTO, MANDUCHI, GABRIELE, Mansfield, D. K., Marchiori, G., MARCONATO, NICOLO', Marcuzzi, D., MARTIN, PIERO, MARTINES, EMILIO, MARTINI, STEFANO, Mazzitelli, G., Mccormack, O., Miorin, E., MOMO, BARBARA, MORESCO, MAURIZIO, Narushima, Y., Okabayashi, M., Paccagnella, R., Patel, N., Pavei, M., Peruzzo, S., Pilan, N., Pigatto, L., Piovan, R., Piovesan, P., Piron, C., Piron, L., Predebon, I., Pucella, G., Rea, C., Recchia, M., Rizzolo, A., Rostagni, G., Ruset, C., Sajò Bohus, L., Sakakita, H., Sanchez, R., Sarff, J. S., Sattin, F., Scarin, P., Schmitz, O., Schneider, W., Siragusa, M., Sonato, P., Spada, E., Spagnolo, S., Spolaore, M., Spong, D. A., Spizzo, G., Stevanato, L., Suzuki, Y., Taliercio, C., Terranova, D., Tudisco, O., Urso, G., Valente, M., Valisa, M., Vallar, M., Veranda, M., Vianello, N., Villone, F., Vincenzi, P., Visonà, N., White, R. B., Xanthopoulos, P., Xu, X. Y., Yanovskiy, V., Zamengo, A., Zanca, P., Zaniol, B., Zanotto, L., Zhang, Y., and Zilli, E.

Abstract

This paper reports the main recent results of the RFX-mod fusion science activity. The RFX-mod device is characterized by a unique exibility in terms of accessible magnetic con gurations. Axisymmetric and helically shaped reversed- eld pinch equilibria have been studied, along with tokamak plasmas in a wide range of q(a) regimes (spanning from 4 down to 1.2 values). The full range of magnetic con gurations in between the two, the so-called ultra-low q ones, has been explored, with the aim of studying speci c physical issues common to all equilibria, such as, for example, the density limit phenomenon. The powerful RFX-mod feedback control system has been exploited for MHD control, which allowed us to extend the range of experimental parameters, as well as to induce speci c magnetic perturbations for the study of 3D effects. In particular, transport, edge and isotope effects in 3D equilibria have been investigated, along with runaway mitigations through induced magnetic perturbations. The rst transitions to an improved con nement scenario in circular and D-shaped tokamak plasmas have been obtained thanks to an active modi cation of the edge electric eld through a polarized electrode. The experiments are supported by intense modeling with 3D MHD, gyrokinetic, guiding center and transport codes. Proposed modi cations to the RFX-mod device, which will enable further contributions to the solution of key issues in the roadmap to ITER and DEMO, are also brie y presented.

Published
2017

24. The Reversed Field Pinch as neutron source for Fusion-Fission Hybrid systems: strengths and issues

Author

Piovan R., Bustreo C., Carraro L., Escande D., Martini S., Puiatti M.E., Valisa M., Zuin M., and Zollino G.

Subjects
Physics::Plasma Physics
Abstract

The fusion reactor remains one of the long term, final solution of energy production. This requires to control fusion reaction with an energy gain Q > 30 - 40. The tokamak configuration is nowadays the most investigated path to this goal. Meanwhile a proposed interim carbon-free solution, with the merit of nuclear waste transmutation, is the hybrid fusion-fission reactor, in which sub-critical fission is activated by fast neutron generated in a fusion reactor. In this case fusion could be produced in a device with lower Q, roughly in the order of 1. The Reversed Field Pinch (RFP) is an alternative configuration to tokamak and stellarator for the future fusion reactor. Its disruption-free configuration, the need of much weaker toroidal magnetic field and the capability of reaching thermonuclear temperatures without additional heating, are relevant advantages in a commercial reactor. While RFP plasmas have yet an energy confinement too low for a high Q reactor, reaching Q near 1 might be reasonable for a RFP machine with an appropriate R&D activity. Starting from the present knowledge in RFP configuration, the experimental results from the different machines and the theoretical advancement obtained in the last years, an analysis is presented on the possibility to use the RFP configuration as a fast neutron generator. It will be highlighted the advantages of this solution with respect to the tokamak - no disruption, toroidal field coils at room temperature and reduced size with more space for breeding blanket, superconductors limited to the magnetizing coil and no divertor - and the possible issues, as steady state operation.

Published
2016

25. Overview of the RFX-mod fusion science programme

Author

Martin, P, Puiatti, M, Agostinetti, P, Agostini, M, Alonso, J, Antoni, V, Apolloni, L, Auriemma, F, Avino, F, Barbalace, A, Barbisan, M, Barbui, T, Barison, S, Barp, M, Baruzzo, M, Bettini, P, Bigi, M, Bilel, R, Boldrin, M, Bolzonella, T, Bonfiglio, D, Bonomo, F, Brombin, M, Buffa, A, Bustreo, C, Canton, A, Cappello, S, Carralero, D, Carraro, L, Cavazzana, R, Chacon, L, Chapman, B, Chitarin, G, Ciaccio, G, Cooper, W, Dal Bello, S, Dalla Palma, M, Delogu, R, De Lorenzi, A, Delzanno, G, De Masi, G, De Muri, M, Dong, J, Escande, D, Fantini, F, Fasoli, A, Fassina, A, Fellin, F, Ferro, A, Fiameni, S, Finn, J, Finotti, C, Fiorentin, A, Fonnesu, N, Framarin, J, Franz, P, Frassinetti, L, Furno, I, Palumbo, M, Gaio, E, Gazza, E, Ghezzi, F, Giudicotti, L, Gnesotto, F, Gobbin, M, Gonzales, W, Grando, L, Guo, S, Hanson, J, Hidalgo, C, Hirano, Y, Hirshman, S, Ide, S, In, Y, Innocente, P, Jackson, G, Kiyama, S, Liu, S, Liu, Y, Lopez Bruna, D, Lorenzini, R, Luce, T, Luchetta, A, Maistrello, A, Manduchi, G, Mansfield, D, Marchiori, G, Marconato, N, Marcuzzi, D, Marrelli, L, Martini, S, Matsunaga, G, Martines, E, Mazzitelli, G, Mccollam, K, Momo, B, Moresco, M, Munaretto, S, Novello, L, Okabayashi, M, Olofsson, E, Paccagnella, R, Pasqualotto, R, Pavei, M, Peruzzo, S, Pesce, A, Pilan, N, Piovan, R, Piovesan, P, Piron, C, Piron, L, Pomaro, N, Predebon, I, Recchia, M, Rigato, V, Rizzolo, A, Roquemore, A, Rostagni, G, Ruzzon, A, Sakakita, H, Sanchez, R, Sarff, J, Sartori, E, Sattin, F, Scaggion, A, Scarin, P, Schneider, W, Serianni, G, Sonato, P, Spada, E, Soppelsa, A, Spagnolo, S, Spolaore, M, Spong, D, Spizzo, G, Takechi, M, Taliercio, C, Terranova, D, Theiler, C, Toigo, V, Trevisan, G, Valente, M, Valisa, M, Veltri, P, Veranda, M, Vianello, N, Villone, F, Wang, Z, White, R, Xu, X, Zaccaria, P, Zamengo, A, Zanca, P, Zaniol, B, Zanotto, L, Zilli, E, Zollino, G, Zuin, M, Martin P, Puiatti M E, Agostinetti P, Agostini M, Alonso J A, Antoni V, Apolloni L, Auriemma F, Avino F, Barbalace A, Barbisan M, Barbui T, Barison S, Barp M, Baruzzo M, Bettini P, Bigi M, Bilel R, Boldrin M, Bolzonella T, Bonfiglio D, Bonomo F, Brombin M, Buffa A, Bustreo C, Canton A, Cappello S, Carralero D, Carraro L, Cavazzana R, Chacon L, Chapman B, Chitarin G, Ciaccio G, Cooper W A, Dal Bello S, Dalla Palma M, Delogu R, De Lorenzi A, Delzanno G L, De Masi G, De Muri M, Dong J Q, Escande D F, Fantini F, Fasoli A, Fassina A, Fellin F, Ferro A, Fiameni S, Finn J M, Finotti C, Fiorentin A, Fonnesu N, Framarin J, Franz P, Frassinetti L, Furno I, Palumbo M Furno, Gaio E, Gazza E, Ghezzi F, Giudicotti L, Gnesotto F, Gobbin M, Gonzales W A, Grando L, Guo S C, Hanson J D, Hidalgo C, Hirano Y, Hirshman S P, Ide S, In Y, Innocente P, Jackson G L, Kiyama S, Liu S F, Liu Y Q, Lopez Bruna D, Lorenzini R, Luce T C, Luchetta A, Maistrello A, Manduchi G, Mansfield D K, Marchiori G, Marconato N, Marcuzzi D, Marrelli L, Martini S, Matsunaga G, Martines E, Mazzitelli G, McCollam K, Momo B, Moresco M, Munaretto S, Novello L, Okabayashi M, Olofsson E, Paccagnella R, Pasqualotto R, Pavei M, Peruzzo S, Pesce A, Pilan N, Piovan R, Piovesan P, Piron C, Piron L, Pomaro N, Predebon I, Recchia M, Rigato V, Rizzolo A, Roquemore A L, Rostagni G, Ruzzon A, Sakakita H, Sanchez R, Sarff J S, Sartori E, Sattin F, Scaggion A, Scarin P, Schneider W, Serianni G, Sonato P, Spada E, Soppelsa A, Spagnolo S, Spolaore M, Spong D A, Spizzo G, Takechi M, Taliercio C, Terranova D, Theiler C, Toigo V, Trevisan G L, Valente M, Valisa M, Veltri P, Veranda M, Vianello N, Villone F, Wang Z R, White R B, Xu X Y, Zaccaria P, Zamengo A, Zanca P, Zaniol B, Zanotto L, Zilli E, Zollino G, Zuin M, Martin, P, Puiatti, M, Agostinetti, P, Agostini, M, Alonso, J, Antoni, V, Apolloni, L, Auriemma, F, Avino, F, Barbalace, A, Barbisan, M, Barbui, T, Barison, S, Barp, M, Baruzzo, M, Bettini, P, Bigi, M, Bilel, R, Boldrin, M, Bolzonella, T, Bonfiglio, D, Bonomo, F, Brombin, M, Buffa, A, Bustreo, C, Canton, A, Cappello, S, Carralero, D, Carraro, L, Cavazzana, R, Chacon, L, Chapman, B, Chitarin, G, Ciaccio, G, Cooper, W, Dal Bello, S, Dalla Palma, M, Delogu, R, De Lorenzi, A, Delzanno, G, De Masi, G, De Muri, M, Dong, J, Escande, D, Fantini, F, Fasoli, A, Fassina, A, Fellin, F, Ferro, A, Fiameni, S, Finn, J, Finotti, C, Fiorentin, A, Fonnesu, N, Framarin, J, Franz, P, Frassinetti, L, Furno, I, Palumbo, M, Gaio, E, Gazza, E, Ghezzi, F, Giudicotti, L, Gnesotto, F, Gobbin, M, Gonzales, W, Grando, L, Guo, S, Hanson, J, Hidalgo, C, Hirano, Y, Hirshman, S, Ide, S, In, Y, Innocente, P, Jackson, G, Kiyama, S, Liu, S, Liu, Y, Lopez Bruna, D, Lorenzini, R, Luce, T, Luchetta, A, Maistrello, A, Manduchi, G, Mansfield, D, Marchiori, G, Marconato, N, Marcuzzi, D, Marrelli, L, Martini, S, Matsunaga, G, Martines, E, Mazzitelli, G, Mccollam, K, Momo, B, Moresco, M, Munaretto, S, Novello, L, Okabayashi, M, Olofsson, E, Paccagnella, R, Pasqualotto, R, Pavei, M, Peruzzo, S, Pesce, A, Pilan, N, Piovan, R, Piovesan, P, Piron, C, Piron, L, Pomaro, N, Predebon, I, Recchia, M, Rigato, V, Rizzolo, A, Roquemore, A, Rostagni, G, Ruzzon, A, Sakakita, H, Sanchez, R, Sarff, J, Sartori, E, Sattin, F, Scaggion, A, Scarin, P, Schneider, W, Serianni, G, Sonato, P, Spada, E, Soppelsa, A, Spagnolo, S, Spolaore, M, Spong, D, Spizzo, G, Takechi, M, Taliercio, C, Terranova, D, Theiler, C, Toigo, V, Trevisan, G, Valente, M, Valisa, M, Veltri, P, Veranda, M, Vianello, N, Villone, F, Wang, Z, White, R, Xu, X, Zaccaria, P, Zamengo, A, Zanca, P, Zaniol, B, Zanotto, L, Zilli, E, Zollino, G, Zuin, M, Martin P, Puiatti M E, Agostinetti P, Agostini M, Alonso J A, Antoni V, Apolloni L, Auriemma F, Avino F, Barbalace A, Barbisan M, Barbui T, Barison S, Barp M, Baruzzo M, Bettini P, Bigi M, Bilel R, Boldrin M, Bolzonella T, Bonfiglio D, Bonomo F, Brombin M, Buffa A, Bustreo C, Canton A, Cappello S, Carralero D, Carraro L, Cavazzana R, Chacon L, Chapman B, Chitarin G, Ciaccio G, Cooper W A, Dal Bello S, Dalla Palma M, Delogu R, De Lorenzi A, Delzanno G L, De Masi G, De Muri M, Dong J Q, Escande D F, Fantini F, Fasoli A, Fassina A, Fellin F, Ferro A, Fiameni S, Finn J M, Finotti C, Fiorentin A, Fonnesu N, Framarin J, Franz P, Frassinetti L, Furno I, Palumbo M Furno, Gaio E, Gazza E, Ghezzi F, Giudicotti L, Gnesotto F, Gobbin M, Gonzales W A, Grando L, Guo S C, Hanson J D, Hidalgo C, Hirano Y, Hirshman S P, Ide S, In Y, Innocente P, Jackson G L, Kiyama S, Liu S F, Liu Y Q, Lopez Bruna D, Lorenzini R, Luce T C, Luchetta A, Maistrello A, Manduchi G, Mansfield D K, Marchiori G, Marconato N, Marcuzzi D, Marrelli L, Martini S, Matsunaga G, Martines E, Mazzitelli G, McCollam K, Momo B, Moresco M, Munaretto S, Novello L, Okabayashi M, Olofsson E, Paccagnella R, Pasqualotto R, Pavei M, Peruzzo S, Pesce A, Pilan N, Piovan R, Piovesan P, Piron C, Piron L, Pomaro N, Predebon I, Recchia M, Rigato V, Rizzolo A, Roquemore A L, Rostagni G, Ruzzon A, Sakakita H, Sanchez R, Sarff J S, Sartori E, Sattin F, Scaggion A, Scarin P, Schneider W, Serianni G, Sonato P, Spada E, Soppelsa A, Spagnolo S, Spolaore M, Spong D A, Spizzo G, Takechi M, Taliercio C, Terranova D, Theiler C, Toigo V, Trevisan G L, Valente M, Valisa M, Veltri P, Veranda M, Vianello N, Villone F, Wang Z R, White R B, Xu X Y, Zaccaria P, Zamengo A, Zanca P, Zaniol B, Zanotto L, Zilli E, Zollino G, and Zuin M

Abstract

This paper reports the highlights of the RFX-mod fusion science programme since the last 2010 IAEA Fusion Energy Conference. The RFX-mod fusion science programme focused on two main goals: exploring the fusion potential of the reversed field pinch (RFP) magnetic configuration and contributing to the solution of key science and technology problems in the roadmap to ITER. Active control of several plasma parameters has been a key tool in this endeavour. New upgrades on the system for active control of magnetohydrodynamic (MHD) stability are underway and will be presented in this paper. Unique among the existing fusion devices, RFX-mod has been operated both as an RFP and as a tokamak. The latter operation has allowed the exploration of edge safety factor q(edge) < 2 with active control of MHD stability and studies concerning basic energy and flow transport mechanisms. Strong interaction has continued with the stellarator community in particular on the physics of helical states and on three-dimensional codes.

Published
2013

26. Overview of the RFX-mod fusion science activity

Author

Zuin, M., primary, Dal Bello, S., additional, Marrelli, L., additional, Puiatti, M.E., additional, Agostinetti, P., additional, Agostini, M., additional, Antoni, V., additional, Auriemma, F., additional, Barbisan, M., additional, Barbui, T., additional, Baruzzo, M., additional, Belli, F., additional, Bettini, P., additional, Bigi, M., additional, Bilel, R., additional, Boldrin, M., additional, Bolzonella, T., additional, Bonfiglio, D., additional, Brombin, M., additional, Buffa, A., additional, Bustreo, C., additional, Canton, A., additional, Cappello, S., additional, Carraro, L., additional, Cavazzana, R., additional, Cester, D., additional, Chacon, L., additional, Chitarin, G., additional, Cooper, W.A., additional, Cordaro, L., additional, Dalla Palma, M., additional, Deambrosis, S., additional, Delogu, R., additional, De Lorenzi, A., additional, De Masi, G., additional, Dong, J.Q., additional, Escande, D.F., additional, Fassina, A., additional, Felici, F., additional, Ferro, A., additional, Finotti, C., additional, Franz, P., additional, Frassinetti, L., additional, Gaio, E., additional, Ghezzi, F., additional, Giudicotti, L., additional, Gnesotto, F., additional, Gobbin, M., additional, Gonzalez, W.A., additional, Grando, L., additional, Guo, S.C., additional, Hanson, J.D., additional, Hirshman, S.P., additional, Innocente, P., additional, Jackson, J.L., additional, Kiyama, S., additional, Komm, M., additional, Kudlacek, O., additional, Laguardia, L., additional, Li, C., additional, Liu, B., additional, Liu, S.F., additional, Liu, Y.Q., additional, López- Bruna, D., additional, Lorenzini, R., additional, Luce, T.C., additional, Luchetta, A., additional, Maistrello, A., additional, Manduchi, G., additional, Mansfield, D.K., additional, Marchiori, G., additional, Marconato, N., additional, Marcuzzi, D., additional, Martin, P., additional, Martines, E., additional, Martini, S., additional, Mazzitelli, G., additional, McCormack, O., additional, Miorin, E., additional, Momo, B., additional, Moresco, M., additional, Narushima, Y., additional, Okabayashi, M., additional, Paccagnella, R., additional, Patel, N., additional, Pavei, M., additional, Peruzzo, S., additional, Pilan, N., additional, Pigatto, L., additional, Piovan, R., additional, Piovesan, P., additional, Piron, C., additional, Piron, L., additional, Predebon, I., additional, Pucella, G., additional, Rea, C., additional, Recchia, M., additional, Rizzolo, A., additional, Rostagni, G., additional, Ruset, C., additional, Sajò-Bohus, L., additional, Sakakita, H., additional, Sanchez, R., additional, Sarff, J.S., additional, Sattin, F., additional, Scarin, P., additional, Schmitz, O., additional, Schneider, W., additional, Siragusa, M., additional, Sonato, P., additional, Spada, E., additional, Spagnolo, S., additional, Spolaore, M., additional, Spong, D.A., additional, Spizzo, G., additional, Stevanato, L., additional, Suzuki, Y., additional, Taliercio, C., additional, Terranova, D., additional, Tudisco, O., additional, Urso, G., additional, Valente, M., additional, Valisa, M., additional, Vallar, M., additional, Veranda, M., additional, Vianello, N., additional, Villone, F., additional, Vincenzi, P., additional, Visonà, N., additional, White, R.B., additional, Xanthopoulos, P., additional, Xu, X.Y., additional, Yanovskiy, V., additional, Zamengo, A., additional, Zanca, P., additional, Zaniol, B., additional, Zanotto, L., additional, Zhang, Y., additional, and Zilli, E., additional

Published
2017
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27. Overview of the RFX-mod fusion science programme

Author

Martin, P., Puiatti, M. E., Agostinetti, P., Agostini, M., Alonso, J. A., Antoni, V., Apolloni, L., Auriemma, F., Avino, F., Barbalace, A., Barbisan, M., Barbui, T., Barison, S., Barp, M., Baruzzo, M., Bettini, P., Bigi, M., Bilel, R., Boldrin, M., Bolzonella, T., Bonfiglio, D., Bonomo, F., Brombin, M., Buffa, A., Bustreo, C., Canton, A., Cappello, S., Carralero, D., Carraro, L., Cavazzana, R., Chacon, L., Chapman, B., Chitarin, G., Ciaccio, G., Cooper, W. A., Dal Bello, S., Dalla Palma, M., Delogu, R., De Lorenzi, A., Delzanno, G. L., De Masi, G., De Muri, M., Dong, J. Q., Escande, D. F., Fantini, F., Fasoli, A., Fassina, A., Fellin, F., Ferro, A., Fiameni, S., Finn, J. M., Finotti, C., Fiorentin, A., Fonnesu, N., Framarin, J., Franz, P., Frassinetti, Lorenzo, Furno, I., Furno Palumbo, M., Gaio, E., Gazza, E., Ghezzi, F., Giudicotti, L., Gnesotto, F., Gobbin, M., Gonzales, W. A., Grando, L., Guo, S. C., Hanson, J. D., Hidalgo, C., Hirano, Y., Hirshman, S. P., Ide, S., In, Y., Innocente, P., Jackson, G. L., Kiyama, S., Liu, S. F., Liu, Y. Q., Lòpez Bruna, D., Lorenzini, R., Luce, T. C., Luchetta, A., Maistrello, A., Manduchi, G., Mansfield, D. K., Marchiori, G., Marconato, N., Marcuzzi, D., Marrelli, L., Martini, S., Matsunaga, G., Martines, E., Mazzitelli, G., McCollam, K., Momo, B., Moresco, M., Munaretto, S., Novello, L., Okabayashi, M., Olofsson, Erik, Paccagnella, R., Pasqualotto, R., Pavei, M., Peruzzo, S., Pesce, A., Pilan, N., Piovan, R., Piovesan, P., Piron, C., Piron, L., Pomaro, N., Predebon, I., Recchia, M., Rigato, V., Rizzolo, A., Roquemore, A. L., Rostagni, G., Ruzzon, A., Sakakita, H., Sanchez, R., Sarff, J. S., Sartori, E., Sattin, F., Scaggion, A., Scarin, P., Schneider, W., Serianni, G., Sonato, P., Spada, E., Soppelsa, A., Spagnolo, S., Spolaore, M., Spong, D. A., Spizzo, G., Takechi, M., Taliercio, C., Terranova, D., Theiler, C., Toigo, V., Trevisan, G. L., Valente, M., Valisa, M., Veltri, P., Veranda, M., Vianello, N., Villone, F., Wang, Z. R., White, R. B., Xu, X. Y., Zaccaria, P., Zamengo, A., Zanca, P., Zaniol, B., Zanotto, L., Zilli, E., Zollino, G., Zuin, M., Martin, P., Puiatti, M. E., Agostinetti, P., Agostini, M., Alonso, J. A., Antoni, V., Apolloni, L., Auriemma, F., Avino, F., Barbalace, A., Barbisan, M., Barbui, T., Barison, S., Barp, M., Baruzzo, M., Bettini, P., Bigi, M., Bilel, R., Boldrin, M., Bolzonella, T., Bonfiglio, D., Bonomo, F., Brombin, M., Buffa, A., Bustreo, C., Canton, A., Cappello, S., Carralero, D., Carraro, L., Cavazzana, R., Chacon, L., Chapman, B., Chitarin, G., Ciaccio, G., Cooper, W. A., Dal Bello, S., Dalla Palma, M., Delogu, R., De Lorenzi, A., Delzanno, G. L., De Masi, G., De Muri, M., Dong, J. Q., Escande, D. F., Fantini, F., Fasoli, A., Fassina, A., Fellin, F., Ferro, A., Fiameni, S., Finn, J. M., Finotti, C., Fiorentin, A., Fonnesu, N., Framarin, J., Franz, P., Frassinetti, Lorenzo, Furno, I., Furno Palumbo, M., Gaio, E., Gazza, E., Ghezzi, F., Giudicotti, L., Gnesotto, F., Gobbin, M., Gonzales, W. A., Grando, L., Guo, S. C., Hanson, J. D., Hidalgo, C., Hirano, Y., Hirshman, S. P., Ide, S., In, Y., Innocente, P., Jackson, G. L., Kiyama, S., Liu, S. F., Liu, Y. Q., Lòpez Bruna, D., Lorenzini, R., Luce, T. C., Luchetta, A., Maistrello, A., Manduchi, G., Mansfield, D. K., Marchiori, G., Marconato, N., Marcuzzi, D., Marrelli, L., Martini, S., Matsunaga, G., Martines, E., Mazzitelli, G., McCollam, K., Momo, B., Moresco, M., Munaretto, S., Novello, L., Okabayashi, M., Olofsson, Erik, Paccagnella, R., Pasqualotto, R., Pavei, M., Peruzzo, S., Pesce, A., Pilan, N., Piovan, R., Piovesan, P., Piron, C., Piron, L., Pomaro, N., Predebon, I., Recchia, M., Rigato, V., Rizzolo, A., Roquemore, A. L., Rostagni, G., Ruzzon, A., Sakakita, H., Sanchez, R., Sarff, J. S., Sartori, E., Sattin, F., Scaggion, A., Scarin, P., Schneider, W., Serianni, G., Sonato, P., Spada, E., Soppelsa, A., Spagnolo, S., Spolaore, M., Spong, D. A., Spizzo, G., Takechi, M., Taliercio, C., Terranova, D., Theiler, C., Toigo, V., Trevisan, G. L., Valente, M., Valisa, M., Veltri, P., Veranda, M., Vianello, N., Villone, F., Wang, Z. R., White, R. B., Xu, X. Y., Zaccaria, P., Zamengo, A., Zanca, P., Zaniol, B., Zanotto, L., Zilli, E., Zollino, G., and Zuin, M.

Abstract

This paper reports the highlights of the RFX-mod fusion science programme since the last 2010 IAEA Fusion Energy Conference. The RFX-mod fusion science programme focused on two main goals: exploring the fusion potential of the reversed field pinch (RFP) magnetic configuration and contributing to the solution of key science and technology problems in the roadmap to ITER. Active control of several plasma parameters has been a key tool in this endeavour. New upgrades on the system for active control of magnetohydrodynamic (MHD) stability are underway and will be presented in this paper. Unique among the existing fusion devices, RFX-mod has been operated both as an RFP and as a tokamak. The latter operation has allowed the exploration of edge safety factor q edge < 2 with active control of MHD stability and studies concerning basic energy and flow transport mechanisms. Strong interaction has continued with the stellarator community in particular on the physics of helical states and on three-dimensional codes., QC 20131028

Published
2013
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29. Overview of the RFX-mod fusion science programme

Author

Martin, P., primary, Puiatti, M.E., additional, Agostinetti, P., additional, Agostini, M., additional, Alonso, J.A., additional, Antoni, V., additional, Apolloni, L., additional, Auriemma, F., additional, Avino, F., additional, Barbalace, A., additional, Barbisan, M., additional, Barbui, T., additional, Barison, S., additional, Barp, M., additional, Baruzzo, M., additional, Bettini, P., additional, Bigi, M., additional, Bilel, R., additional, Boldrin, M., additional, Bolzonella, T., additional, Bonfiglio, D., additional, Bonomo, F., additional, Brombin, M., additional, Buffa, A., additional, Bustreo, C., additional, Canton, A., additional, Cappello, S., additional, Carralero, D., additional, Carraro, L., additional, Cavazzana, R., additional, Chacon, L., additional, Chapman, B., additional, Chitarin, G., additional, Ciaccio, G., additional, Cooper, W.A., additional, Dal Bello, S., additional, Dalla Palma, M., additional, Delogu, R., additional, De Lorenzi, A., additional, Delzanno, G.L., additional, De Masi, G., additional, De Muri, M., additional, Dong, J.Q., additional, Escande, D.F., additional, Fantini, F., additional, Fasoli, A., additional, Fassina, A., additional, Fellin, F., additional, Ferro, A., additional, Fiameni, S., additional, Finn, J.M., additional, Finotti, C., additional, Fiorentin, A., additional, Fonnesu, N., additional, Framarin, J., additional, Franz, P., additional, Frassinetti, L., additional, Furno, I., additional, Furno Palumbo, M., additional, Gaio, E., additional, Gazza, E., additional, Ghezzi, F., additional, Giudicotti, L., additional, Gnesotto, F., additional, Gobbin, M., additional, Gonzales, W.A., additional, Grando, L., additional, Guo, S.C., additional, Hanson, J.D., additional, Hidalgo, C., additional, Hirano, Y., additional, Hirshman, S.P., additional, Ide, S., additional, In, Y., additional, Innocente, P., additional, Jackson, G.L., additional, Kiyama, S., additional, Liu, S.F., additional, Liu, Y.Q., additional, Lòpez Bruna, D., additional, Lorenzini, R., additional, Luce, T.C., additional, Luchetta, A., additional, Maistrello, A., additional, Manduchi, G., additional, Mansfield, D.K., additional, Marchiori, G., additional, Marconato, N., additional, Marcuzzi, D., additional, Marrelli, L., additional, Martini, S., additional, Matsunaga, G., additional, Martines, E., additional, Mazzitelli, G., additional, McCollam, K., additional, Momo, B., additional, Moresco, M., additional, Munaretto, S., additional, Novello, L., additional, Okabayashi, M., additional, Olofsson, E., additional, Paccagnella, R., additional, Pasqualotto, R., additional, Pavei, M., additional, Peruzzo, S., additional, Pesce, A., additional, Pilan, N., additional, Piovan, R., additional, Piovesan, P., additional, Piron, C., additional, Piron, L., additional, Pomaro, N., additional, Predebon, I., additional, Recchia, M., additional, Rigato, V., additional, Rizzolo, A., additional, Roquemore, A.L., additional, Rostagni, G., additional, Ruzzon, A., additional, Sakakita, H., additional, Sanchez, R., additional, Sarff, J.S., additional, Sartori, E., additional, Sattin, F., additional, Scaggion, A., additional, Scarin, P., additional, Schneider, W., additional, Serianni, G., additional, Sonato, P., additional, Spada, E., additional, Soppelsa, A., additional, Spagnolo, S., additional, Spolaore, M., additional, Spong, D.A., additional, Spizzo, G., additional, Takechi, M., additional, Taliercio, C., additional, Terranova, D., additional, Theiler, C., additional, Toigo, V., additional, Trevisan, G.L., additional, Valente, M., additional, Valisa, M., additional, Veltri, P., additional, Veranda, M., additional, Vianello, N., additional, Villone, F., additional, Wang, Z.R., additional, White, R.B., additional, Xu, X.Y., additional, Zaccaria, P., additional, Zamengo, A., additional, Zanca, P., additional, Zaniol, B., additional, Zanotto, L., additional, Zilli, E., additional, Zollino, G., additional, and Zuin, M., additional

Published
2013
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30. Could clean industrial progresses and the rise of electricity demand foster the penetration of nuclear fusion in the European energy mix?

Author

Laura Savoldi, Francesco Gracceva, Mirko Saccone, Chiara Bustreo, Daniele Lerede, Lerede, D., Saccone, M., Bustreo, C., Gracceva, F., and Savoldi, L.

Subjects
nuclear fusion penetration, business.industry, Mechanical Engineering, energy scenarios, energy system model optimization, industry sector, Energy mix, Environmental economics, Renewable energy, Electrification, Nuclear Energy and Engineering, Work (electrical), Software deployment, Secondary sector of the economy, Production (economics), General Materials Science, Business, Electricity, Civil and Structural Engineering
Abstract

The effects of the update of the EUROfusion TIMES Model (ETM) industrial sector to account for the introduction of low-carbon technologies is presented and discussed in this work. ETM is a minimum-cost energy system model aimed at investigating the conditions for the introduction of nuclear fusion in the future electricity mix. The most interesting ETM long-run scenarios (until 2100) must comply with stringent environmental targets to pursue the Below-2-Degrees objective, identified in the Paris Agreement, allowing wide commercial adoption of innovative production processes - currently under test or research - which would almost completely replace well-established fossil-based industrial techniques in the iron and steel, chemicals, non-ferrous metals, non-metallic minerals and pulp and paper sub-sectors. Among them, low-carbon and electrolysis-based processes could open the way to a considerable increase of electricity demand, requiring also clean resources not to undermine sectoral efforts in becoming more environmentally sustainable, and the same does the implementation of CCS technologies. The study shows that the industrial sector contributes to the energy mix decarbonization by relying on CCS technologies, when available, or new low-carbon technologies. The progressive electrification of the industrial sector turns into an increasing final electricity demand which is covered by renewables and nuclear when stringent climate policies are put in place. Despite technological constraints are likely to slow down fusion deployment in the future, a range of scenarios show that nuclear fusion could contribute to generation of carbon-free electricity in the future European energy system.

Published
2021
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31. RFP based Fusion-Fission Hybrid reactor model for nuclear applications

Author

Marco Ripani, Giuseppe Zollino, M. Zuin, Paolo Bettini, Piero Agostinetti, R. Casagrande, M. E. Puiatti, Chiara Bustreo, M. Osipenko, Roberto Cavazzana, Fabio Panza, Giovanni Ricco, M. Valisa, D.F. Escande, R. Piovan, Bustreo, C., Agostinetti, P., Bettini, P., Casagrande, R., Cavazzana, R., Escande, D., Osipenko, M., Panza, F., Piovan, R., Puiatti, M. E., Ricco, G., Ripani, M., Valisa, M., Zollino, G., and Zuin, M.

Subjects
Materials science, Nuclear fuel cladding, Nuclear transmutation, Nuclear fuel, Reversed field pinch, Mechanical Engineering, Nuclear engineering, Blanket, 01 natural sciences, 010305 fluids & plasmas, Fusion-fission hybrid reactor, Nuclear Energy and Engineering, Neutron flux, Breeding blanket, RFP, 0103 physical sciences, Hybrid reactor, General Materials Science, Neutron, 010306 general physics, Joule heating, Civil and Structural Engineering
Abstract

The Reversed Field Pinch (RFP) configuration looks to be an attractive option for fusion-fission hybrid reactors: the toroidal magnetic systems would be made of copper coils instead of more expensive superconductive magnets; fusion conditions could be reached by ohmic heating only, therefore additional heating systems would not be required; the fission blanket could be located in the most external part of the torus thus facilitating maintenance operations. The paper aims at assessing the potentialities, such as fuel fertilization and/or nuclear waste transmutation and electricity production of a hybrid reactor with a RFP fusion core (R = 6 m, a = 1) whose conceptual design and plasma performances are based on RFX-mod, the largest RFP experiment currently in operation. Fusion conditions can be reached by heating a D-T plasma up to 9.6 keV by ohmic heating, generated by a 20 MA plasma current induced and sustained by flux swing only. The neutron flux (2.1 × 1013 fast neutron/cm2/s) is used to breed tritium in both the inner and outer blanket sections and induce fission reactions in dedicated areas in the external blanket section where Pu + MA (60%)-Zr (40%) rods are located. Both neutronic and safety analyses corroborate the viability of a FFH reactor with a RFP core.

Published
2019
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32. Analysis of the Effects of Electrification of the Road Transport Sector on the Possible Penetration of Nuclear Fusion in the Long-Term European Energy Mix

Author

Laura Savoldi, Francesco Gracceva, Chiara Bustreo, Yolanda Lechón, Daniele Lerede, Lerede, D., Bustreo, C., Gracceva, Francesco, Lechon, Y., and Savoldi, L.

Subjects
Control and Optimization, Process (engineering), 020209 energy, Energy Engineering and Power Technology, 02 engineering and technology, lcsh:Technology, 7. Clean energy, 01 natural sciences, road transport, 010305 fluids & plasmas, Electrification, 11. Sustainability, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Production (economics), Electrical and Electronic Engineering, Engineering (miscellaneous), nuclear fusion, electric vehicles, lcsh:T, Renewable Energy, Sustainability and the Environment, business.industry, energy scenarios, EUROfusion TIMES model, Energy mix, Energy consumption, Environmental economics, Investment (macroeconomics), Electricity generation, 13. Climate action, Electricity, business, Energy (miscellaneous)
Abstract

The European Roadmap towards the production of electricity from nuclear fusion foresees the potential availability of nuclear fusion power plants (NFPPs) in the second half of this century. The possible penetration of that technology, typically addressed by using the global energy system EUROFusion TIMES Model (ETM), will depend, among other aspects, on its costs compared to those of the other available technologies for electricity production, and on the future electricity demand. This paper focuses on the ongoing electrification process of the transport sector, with special attention devoted to road transport. A survey on the present and forthcoming technologies, as foreseen by several manufacturers and other models, and an international vehicle database are taken into account to develop the new road transport module, then implemented and harmonized inside ETM. Following three different storylines, the computed results are presented in terms of the evolution of the road transport demand in the next decades, fleet composition and CO 2 emissions. The ETM results are in line with many other studies. On one hand, they highlight, for the European road transport energy consumption pattern, the need for dramatic changes in the transport market, if the most ambitious environmental goals are to be pursued. On the other hand, the results also show that NFPP adoption on a commercial scale could be justified within the current projection of the investment costs, if the deep penetration of electricity in the road transport sector also occurs.

Published
2020
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33. Overview of the RFX-mod fusion science activity

Author

A. De Lorenzi, Rita Lorenzini, F. Belli, Andrea Rizzolo, Luca Stevanato, O. McCormack, Paolo Scarin, D. F. Escande, J. S. Sarff, M. Bigi, Y. Zhang, Alessandro Fassina, L. Piron, N. Vianello, M. E. Puiatti, Roberto Paccagnella, Fabio Villone, Piergiorgio Sonato, Nicola Pilan, Emilio Martines, James D. Hanson, C. Taliercio, A. Zamengo, M. Recchia, L. Giudicotti, M. Vallar, J.Q. Dong, M. Dalla Palma, Daniele Bonfiglio, Paolo Franz, Matthias Komm, Luis Chacon, Satoru Kiyama, N. Visona, M. Siragusa, L. Zanotto, Paolo Bettini, D. Terranova, Raul Sanchez, Roscoe White, S. Dal Bello, M. Brombin, Enrico Zilli, Francesco Gnesotto, Yueqiang Liu, S.P. Hirshman, L. Pigatto, S. Martini, Piero Martin, M. Pavei, Nisarg Patel, Alessandra Canton, Lorenzo Frassinetti, Matteo Zuin, T. Bolzonella, G. Urso, Chenguang Li, Oliver Schmitz, C. Finotti, Paolo Zanca, Chiara Bustreo, Silvia Spagnolo, M. Veranda, M. Baruzzo, V. Antoni, T. Barbui, Hajime Sakakita, Pavlos Xanthopoulos, Wolf-Dieter Schneider, Nicolò Marconato, Yoshiro Narushima, W. A. Cooper, G. Pucella, Piero Agostinetti, Lionello Marrelli, B. Liu, B. Momo, Simone Peruzzo, X. Y. Xu, Elena Gaio, M. Moresco, Francesco Ghezzi, Y. Suzuki, C. Piron, O. Tudisco, Susanna Cappello, P. Piovesan, Adriano Luchetta, A. Maistrello, F. Sattin, M. Boldrin, Donald A. Spong, A. Buffa, L. Cordaro, V. Yanovskiy, R. Cavazzana, Cristina Rea, W. Gonzalez, Matteo Agostini, R. Piovan, Songfen Liu, Giuseppe Chitarin, G. Rostagni, S. M. Deambrosis, Alberto Ferro, O. Kudlacek, M. Spolaore, Gianluca Spizzo, Paolo Innocente, Italo Predebon, G. Mazzitelli, Marco Gobbin, D. Cester, J. L. Jackson, Laszlo Sajo-Bohus, M. Valente, T.C. Luce, L. Laguardia, Diego Marcuzzi, Fulvio Auriemma, Giuseppe Marchiori, P. Vincenzi, D.K. Mansfield, E. Spada, M. Valisa, G. De Masi, Gabriele Manduchi, Lorella Carraro, E. Miorin, M. Okabayashi, S. C. Guo, Barbara Zaniol, R. Delogu, D. Lopez-Bruna, Marco Barbisan, Faa Federico Felici, Cristian Ruset, Luca Grando, R. Bilel, Mazzitelli, G., Tudisco, O., Pucella, G., Zuin, M, DAL BELLO, S, Marrelli, L, Puiatti, M, Agostinetti, P, Agostini, M, Antoni, V, Auriemma, F, Barbisan, M, Barbui, T, Baruzzo, M, Belli, F, Bettini, P, Bigi, M, Bilel, R, Boldrin, M, Bolzonella, T, Bonfiglio, D, Brombin, M, Buffa, A, Bustreo, C, Canton, A, Cappello, S, Carraro, L, Cavazzana, R, Cester, D, Chacon, L, Chitarin, G, Cooper, W, Cordaro, L, DALLA PALMA, M, Deambrosis, S, Delogu, R, De Lorenzi, A, DE MASI, G, Dong, J, Escande, D, Fassina, A, Felici, F, Ferro, A, Finotti, C, Franz, P, Frassinetti, L, Gaio, E, Ghezzi, F, Giudicotti, L, Gnesotto, F, Gobbin, M, Gonzalez, W, Grando, L, Guo, S, Hanson, J, Hirshman, S, Innocente, P, Jackson, J, Kiyama, S, Komm, M, Kudlacek, O, Laguardia, A, Li, C, Liu, B, Liu, S, Liu, Y, López Bruna, D, Lorenzini, R, Luce, T, Luchetta, A, Maistrello, A, Manduchi, G, Mansfield, D, Marchiori, G, Marconato, N, Marcuzzi, D, Martin, P, Martines, E, Martini, S, Mazzitelli, G, Mccormack, O, Miorin, E, Momo, B, Moresco, M, Narushima, Y, Okabayashi, M, Paccagnella, R, Patel, N, Pavei, M, Peruzzo, S, Pilan, N, Pigatto, L, Piovan, R, Piovesan, P, Piron, C, Piron, L, Predebon, I, Pucella, G, Rea, C, Recchia, M, Rizzolo, A, Rostagni, G, Ruset, C, Sajò Bohus, L, Sakakita, H, Sanchez, R, Sarff, J, Sattin, F, Scarin, P, Schmitz, O, Schneider, W, Siragusa, M, Sonato, P, Spada, E, Spagnolo, S, Spolaore, M, Spong, D, Spizzo, G, Stevanato, L, Suzuki, Y, Taliercio, C, Terranova, D, Tudisco, O, Urso, G, Valente, M, Valisa, M, Vallar, M, Veranda, M, Vianello, N, Villone, F, Vincenzi, P, Visonà, N, White, R, Xanthopoulos, P, Xu, X, Yanovskiy, V, Zamengo, A, Zanca, P, Zaniol, B, Zanotto, L, Zhang, Y, and Zilli, E

Subjects
Nuclear and High Energy Physics, Guiding center, Tokamak, MHD, single helicity, reversed field pinch, runaway electron, 01 natural sciences, 010305 fluids & plasmas, law.invention, 3D boundary, Physics::Plasma Physics, law, Electric field, 0103 physical sciences, 010306 general physics, PWI, tokamak, reversed field pinch, tokamak, single helicity, 3D boundary, runaway electrons, MHD, PWI, Physics, Reversed field pinch, runaway electrons, Plasma, Condensed Matter Physics, Computational physics, Magnet, ingle helicity, Pinch, Atomic physics, Magnetohydrodynamics
Abstract

This paper reports the main recent results of the RFX-mod fusion science activity. The RFX-mod device is characterized by a unique flexibility in terms of accessible magnetic configurations. Axisymmetric and helically shaped reversed-field pinch equilibria have been studied, along with tokamak plasmas in a wide range of q(a) regimes (spanning from 4 down to 1.2 values). The full range of magnetic configurations in between the two, the so-called ultra-low q ones, has been explored, with the aim of studying specific physical issues common to all equilibria, such as, for example, the density limit phenomenon. The powerful RFX-mod feedback control system has been exploited for MHD control, which allowed us to extend the range of experimental parameters, as well as to induce specific magnetic perturbations for the study of 3D effects. In particular, transport, edge and isotope effects in 3D equilibria have been investigated, along with runaway mitigations through induced magnetic perturbations. The first transitions to an improved confinement scenario in circular and D-shaped tokamak plasmas have been obtained thanks to an active modification of the edge electric field through a polarized electrode. The experiments are supported by intense modeling with 3D MHD, gyrokinetic, guiding center and transport codes. Proposed modifications to the RFX-mod device, which will enable further contributions to the solution of key issues in the roadmap to ITER and DEMO, are also briefly presented. © 2017 IAEA, Vienna.

Published
2017
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34. Overview of the RFX-mod fusion science programme

Author

Piergiorgio Sonato, S. Dal Bello, Maria Ester Puiatti, Piero Martin, A. Fiorentin, Stefano Munaretto, F. Fellin, G. De Masi, M. Gobbin, Silvia Spagnolo, M. Furno Palumbo, P. Zaccaria, E. Gazza, M. Recchia, Raul Sanchez, Karsten McCollam, G. L. Trevisan, E. Spada, Alessandra Canton, Matteo Zuin, Ivo Furno, Christian Theiler, A. Zamengo, J.Q. Dong, Emilio Martines, B. E. Chapman, M. Dalla Palma, Paolo Franz, M. Brombin, V. Rigato, J. Framarin, Antonio Barbalace, P. Piovesan, Nicola Pilan, Donald A. Spong, Roberto Paccagnella, Wolf-Dieter Schneider, Barbara Zaniol, Fabio Villone, Leonardo Giudicotti, M. De Muri, T.C. Luce, R. Piovan, A. Ruzzon, V. Antoni, Giuseppe Zollino, Emanuele Sartori, Yueqiang Liu, G. Rostagni, M. Baruzzo, Manabu Takechi, Yongkyoon In, R. Delogu, Fulvio Auriemma, J. A. Alonso, M. Barp, C. Piron, D. Bonfiglio, Go Matsunaga, Enrico Zilli, G. Ciaccio, S. Martini, L. Piron, Marco Barbisan, Songfen Liu, M. Veranda, A. Scaggion, Giuseppe Chitarin, N. Pomaro, Luis Chacon, James D. Hanson, L. Apolloni, Yoichi Hirano, M. Spolaore, Francesco Gnesotto, F. Avino, Nicolò Marconato, M. Valente, Alberto Ferro, Fabio Sattin, Pierluigi Veltri, Gabriele Manduchi, L. Zanotto, C. Hidalgo, Paolo Innocente, Simona Barison, L. Novello, Italo Predebon, Rita Lorenzini, David Terranova, Luca Grando, Zhirui Wang, Vanni Toigo, M. Boldrin, M. Bigi, Adriano Luchetta, Paolo Bettini, Erik Olofsson, Andrea Rizzolo, Gianluigi Serianni, Anton Soppelsa, Cesare Taliercio, Roscoe White, C. Finotti, Susanna Cappello, N. Fonnesu, Roberto Pasqualotto, Paolo Scarin, R. Bilel, Shunsuke Ide, Alessandro Fassina, A. Maistrello, D. Carralero, Matteo Agostini, W. A. Cooper, P. Zanca, A. Buffa, Piero Agostinetti, G. Mazzitelli, X. Y. Xu, S. Fiameni, M. Moresco, John M. Finn, Lionello Marrelli, B. Momo, Tommaso Bolzonella, Nicola Vianello, Giuseppe Marchiori, D.K. Mansfield, M. Valisa, M. Okabayashi, S. C. Guo, Dominique Escande, Lorella Carraro, A. Pesce, M. Pavei, F. Ghezzi, Roberto Cavazzana, Satoru Kiyama, W. A. Gonzales, Simone Peruzzo, S.P. Hirshman, Elena Gaio, T. Barbui, Hajime Sakakita, G.L. Jackson, J. S. Sarff, Ambrogio Fasoli, D. Lopez Bruna, A. L. Roquemore, Federica Bonomo, F. Fantini, Lorenzo Frassinetti, C. Bustreo, Diego Marcuzzi, G. L. Delzanno, Gianluca Spizzo, A. De Lorenzi, Martin, P, Puiatti, M, Agostinetti, P, Agostini, M, Alonso, J, Antoni, V, Apolloni, L, Auriemma, F, Avino, F, Barbalace, A, Barbisan, M, Barbui, T, Barison, S, Barp, M, Baruzzo, M, Bettini, P, Bigi, M, Bilel, R, Boldrin, M, Bolzonella, T, Bonfiglio, D, Bonomo, F, Brombin, M, Buffa, A, Bustreo, C, Canton, A, Cappello, S, Carralero, D, Carraro, L, Cavazzana, R, Chacon, L, Chapman, B, Chitarin, G, Ciaccio, G, Cooper, W, Dal Bello, S, Dalla Palma, M, Delogu, R, De Lorenzi, A, Delzanno, G, De Masi, G, De Muri, M, Dong, J, Escande, D, Fantini, F, Fasoli, A, Fassina, A, Fellin, F, Ferro, A, Fiameni, S, Finn, J, Finotti, C, Fiorentin, A, Fonnesu, N, Framarin, J, Franz, P, Frassinetti, L, Furno, I, Palumbo, M, Gaio, E, Gazza, E, Ghezzi, F, Giudicotti, L, Gnesotto, F, Gobbin, M, Gonzales, W, Grando, L, Guo, S, Hanson, J, Hidalgo, C, Hirano, Y, Hirshman, S, Ide, S, In, Y, Innocente, P, Jackson, G, Kiyama, S, Liu, S, Liu, Y, Lopez Bruna, D, Lorenzini, R, Luce, T, Luchetta, A, Maistrello, A, Manduchi, G, Mansfield, D, Marchiori, G, Marconato, N, Marcuzzi, D, Marrelli, L, Martini, S, Matsunaga, G, Martines, E, Mazzitelli, G, Mccollam, K, Momo, B, Moresco, M, Munaretto, S, Novello, L, Okabayashi, M, Olofsson, E, Paccagnella, R, Pasqualotto, R, Pavei, M, Peruzzo, S, Pesce, A, Pilan, N, Piovan, R, Piovesan, P, Piron, C, Piron, L, Pomaro, N, Predebon, I, Recchia, M, Rigato, V, Rizzolo, A, Roquemore, A, Rostagni, G, Ruzzon, A, Sakakita, H, Sanchez, R, Sarff, J, Sartori, E, Sattin, F, Scaggion, A, Scarin, P, Schneider, W, Serianni, G, Sonato, P, Spada, E, Soppelsa, A, Spagnolo, S, Spolaore, M, Spong, D, Spizzo, G, Takechi, M, Taliercio, C, Terranova, D, Theiler, C, Toigo, V, Trevisan, G, Valente, M, Valisa, M, Veltri, P, Veranda, M, Vianello, N, Villone, F, Wang, Z, White, R, Xu, X, Zaccaria, P, Zamengo, A, Zanca, P, Zaniol, B, Zanotto, L, Zilli, E, Zollino, G, Zuin, M, and Mazzitelli, G.

Subjects
Nuclear and High Energy Physics, RFX-mod, Tokamak, Strong interaction, reversed field pinch, law.invention, Magnetohydrodynamics, law, RFP, Fusion, Safety factor, Reversed field pinch, Flow transport, Settore FIS/01 - Fisica Sperimentale, Iter tokamak, Fusion power, IAEA Fusion Energy Conference, Science and Technology, Condensed Matter Physics, Active control, Plasma parameter, Plasma devices, Systems engineering, Fusion devices, Magnetic configuration, Stellarator
Abstract

This paper reports the highlights of the RFX-mod fusion science programme since the last 2010 IAEA Fusion Energy Conference. The RFX-mod fusion science programme focused on two main goals: exploring the fusion potential of the reversed field pinch (RFP) magnetic configuration and contributing to the solution of key science and technology problems in the roadmap to ITER. Active control of several plasma parameters has been a key tool in this endeavour. New upgrades on the system for active control of magnetohydrodynamic (MHD) stability are underway and will be presented in this paper. Unique among the existing fusion devices, RFX-mod has been operated both as an RFP and as a tokamak. The latter operation has allowed the exploration of edge safety factor q edge < 2 with active control of MHD stability and studies concerning basic energy and flow transport mechanisms. Strong interaction has continued with the stellarator community in particular on the physics of helical states and on three-dimensional codes. © 2013 IAEA, Vienna.

Published
2013
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35. Overview of the DEMO staged design approach in Europe

Author

F. Maviglia, E. Diegele, A. Loving, Gerald Pintsuk, Valentina Corato, C. Bachmann, G. Keech, Wolfgang Biel, I. Moscato, Minh Quang Tran, Th. Franke, Mattia Siccinio, Joanne M. Holden, Lorenzo V. Boccaccini, C. Gliss, Sergio Ciattaglia, H. Walden, Elena Gaio, Jeong-Ha You, C. Bustreo, L. Barucca, G. Federici, C. Vorpahl, N. Taylor, J. Morris, B. Meszaros, Fabio Cismondi, Angel Ibarra, Christian Day, R. Kembleton, T. Haertl, Ch. Baylard, Federici, G., Bachmann, C., Barucca, L., Baylard, C., Biel, W., Boccaccini, L. V., Bustreo, C., Ciattaglia, S., Cismondi, F., Corato, V., Day, C., Diegele, E., Franke, T., Gaio, E., Gliss, C., Haertl, T., Ibarra, A., Holden, J., Keech, G., Kembleton, R., Loving, A., Maviglia, F., Morris, J., Meszaros, B., Moscato, I., Pintsuk, G., Siccinio, M., Taylor, N., Tran, M. Q., Vorpahl, C., Walden, H., and You, J. H.

Subjects
Nuclear and High Energy Physics, breeding blanket, DEMO, design integration, divertor, fusion reactor, systems code, Design activities, Fuel cycle, media_common.quotation_subject, Thermal power station, Design integration, 7. Clean energy, 01 natural sciences, 010305 fluids & plasmas, 0103 physical sciences, Production (economics), 010306 general physics, media_common, Integrated design, business.industry, Condensed Matter Physics, Interdependence, Systems engineering, Electricity, ddc:620, business
Abstract

This paper describes the status of the pre-conceptual design activities in Europe to advance the technical basis of the design of a DEMOnstration Fusion Power Plant (DEMO) to come in operation around the middle of this century with the main aims of demonstrating the production of few hundred MWs of net electricity, the feasibility of operation with a closed-tritium fuel cycle, and maintenance systems capable of achieving adequate plant availability. This is expected to benefit as much as possible from the ITER experience, in terms of design, licensing, and construction. Emphasis is on an integrated design approach, based on system engineering, which provides a clear path for urgent R&D and addresses the main design integration issues by taking account critical systems interdependencies and inherent uncertainties of important design assumptions (physics and technology). A design readiness evaluation, together with a technology maturation and down selection strategy are planned through structured and transparent Gate Reviews. By embedding industry experience in the design from the beginning it will ensure that early attention is given to technology readiness and industrial feasibility, costs, maintenance, power conversion, nuclear safety and licensing aspects.

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