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2. Design and development activities for in-vessel and in-port components of ITER microwave diagnostics

Author

Sirinelli, Antoine, Antonov, Nikolay, Feder, Russel, Giacomin, Thibaud, Hanson, Gregory, Johnson, David, Lukyanov, Vitaliy, Maquet, Philippe, Martin, Alex, Oosterbeek, Johan W., Penot, Christophe, Portalès, Mickaël, Roman, Catalin, Sanchez, Paco, Shelukhin, Dmitry, Udintsev, Victor S., Vayakis, George, Vershkov, Vladimir, Walsh, Michael J., Zolfaghari, Ali, and Zvonkov, Alexander

Subjects
Physics - Plasma Physics, Physics - Instrumentation and Detectors
Abstract

The ITER tokamak will be operating with 5 microwave diagnostic systems. While they rely on different physics, they share a common need: transmitting low and high power microwave in the range of 12 GHz to 1000 GHz(different bandwidths for different diagnostics) between the plasma and a diagnostic area tens of meters away. The designs proposed for vacuum windows, in-vessel waveguides and antennas are presented together with the development activities needed to finalise this work., Comment: Part of SOFT 2014 conference, San Sebastian, Spain

Published
2015

3. MISTRAL campaign in support of W7-X long pulse operation

Author

Oosterbeek Johan W., Stern Mathias, Braune Harald, Ewert Karsten, Hirsch Matthias, Hollmann Frank, Killinger Andreas, Laqua Heinrich P., Maquet Philippe, Marsen Stefan, Martínez-García Venancio, Moseev Dmitry, Noke Frank, Pak Sunil, Reintrog Arne, Stange Torsten, Wolf Robert C., and Zubieta-Lupo Rafael J.

Subjects
Physics, QC1-999
Abstract

Following two initial campaigns [1], Stellarator Wendelstein 7-X (W7-X) has now completed the construction phase by installation of active cooling of all plasma facing components. The machine is presently commissioned for the next campaign (OP2) aiming at 1 GJ per pulse, e.g. 100 s at 10 MW, eventually aiming at 18 GJ, e.g. 1800 s at 10 MW. The key heating system is the Electron Cyclotron Resonance Heating (ECRH) system, consisting of 10 gyrotrons with power per gyrotron ranging from 0.6 MW up to 1.0 MW at 140 GHz. A phased upgrade of the installation is in progress with the addition of 2 gyrotrons and the development of 1.5 MW and 2.0 MW gyrotrons, such that at the end of the upgrade 4 gyrotrons will be available in each power class of 1.0, 1.5 and 2.0 MW [2]. The increased ECRH power, combined with O2 and X3 heating schemes at high densities, will lead to increased microwave stray radiation. This is non-absorbed microwave power that diffuses inside the vessel and is incident on all in-vessel components including vacuum windows and attached diagnostic systems. A fraction of the stray radiation is absorbed by resistive or dielectric losses of these components, leading to thermal loads that scale with stray radiation levels and pulse length. At W7-X a high power microwave stray radiation launch facility ’MISTRAL’ is available that is used to qualify invessel components for use at specified microwave surface power densities [Wm−2]. This paper reports on MISTRAL campaigns in 2020 2021 for testing of stray radiation loads during OP2 in W7-X, as well as on an EUROfusion program assessing stray radiation loads on ITER components. A dedicated, absolutely calibrated, caloric load was developed for the campaign to obtain measurement of stray radiation power levels as well as to conveniently expose samples. Amongst other we report on shielding concepts using metal enclosures combined with microwave absorbing coatings and dielectric heating of vacuum windows.

Published
2023
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4. Functional materials for ITER diagnostic systems – Radiation aspects

Author

Casal, Natalia, Andrew, Philip, Barnsley, Robin, Bassan, Michele, Barbero, José Luis, Bertalot, Luciano, De Bock, Maarten, Brichard, Benoit, Giacomin, Thibaud, Juarez, Rafael, Kocan, Martin, Le Guern, Frederic, Loughlin, Michael, Ma, Yunxing, Mackel, Felix, Meister, Hans, Maquet, Philippe, Martin, Vincent, Reichle, Roger, Seyvet, Fabien, Sirinelli, Antoine, Shigin, Pavel, Udintsev, Victor, Vayakis, George, Vorpahl, Christian, Watts, Cristopher, and Walsh, Michael

Published
2017
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7. Lymphatic Alterations Under Tattoos: Preliminary Reports of One Observational Study

Author

Bourgeois,Pierre, Roman,Mirela Mariana, Schweicher,Justine, Lavoisier,Pauline, Maquet,Philippe, Karler,Clarence, Lizewski,Mateusz, Fouarge,Alessandro, Cuylits,Nicolas, del Marmol,Véronique, Leduc,Olivier, Bourgeois,Pierre, Roman,Mirela Mariana, Schweicher,Justine, Lavoisier,Pauline, Maquet,Philippe, Karler,Clarence, Lizewski,Mateusz, Fouarge,Alessandro, Cuylits,Nicolas, del Marmol,Véronique, and Leduc,Olivier

Abstract

Pierre Bourgeois,1– 4 Mirela Mariana Roman,5 Justine Schweicher,6 Pauline Lavoisier,6 Philippe Maquet,6 Clarence Karler,7 Mateusz Lizewski,8 Alessandro Fouarge,8 Nicolas Cuylits,8 Véronique del Marmol,1 Olivier Leduc6 1Service of Dermatology, Hospital Erasme, Université Libre de Bruxelles, Brussels, Belgium; 2Services of Nuclear Medicine, HIS-IZZ Hospitals, Université Libre de Bruxelles, Brussels, Belgium; 3Multi-Disciplinary Clinic of Lymphology, Institute Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium; 4Service of Vascular Surgery, HIS-IZZ Hospitals, Université Libre de Bruxelles, Brussels, Belgium; 5Department of Mammo-Pelvic Surgery, Institute Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium; 6Unité de lympho-phlébologie, Haute Ecole Bruxelles-Brabant, Haute Ecole Robert Schuman, Brussels, Belgium; 7Department of Anesthesia-Algologia, Hospital Moliere, Université Libre de Bruxelles, Brussels, Belgium; 8Service of Plastic, Reconstructive and Aesthetic Surgery, Hospital Erasme, Université Libre de Bruxelles, Brussels, BelgiumCorrespondence: Pierre Bourgeois, Department of Dermatology, University Hospital Erasme, Université Libre de Bruxelles, 808, route de Lennik, Brussels, 1070, Belgium, Tel +32495201906, Email pierre.bourgeois@erasme.ulb.ac.beBackground: The number of people within the European population having at least one tattoo has increased notably and with it the number of tattoo-associated clinical complications. The injected inks are known to be removed by the lymphatic vessels and can be found in the draining lymph nodes.Aim of the Study: To report our observations on the lymphatic drainages seen under tattoos using near infrared fluorescence imaging of these lymphatic vessels after the injection of indocyanine green.Material and Methods: Indocyanine green was injected intradermally at the basis of the 20 tattooed area(s) in 19 subjects (nine women and ten men; mean age = 28.6). Ten subjects had only black tatt

Published
2023

8. Final design of the generic upper port plug structure for ITER diagnostic systems

Author

Pak, Sunil, Feder, Russell, Giacomin, Thibaud, Guirao, Julio, Iglesias, Silvia, Josseaume, Fabien, Kalish, Michael, Loesser, Douglas, Maquet, Philippe, Ordieres, Javier, Panizo, Marcos, Pitcher, Spencer, Portalès, Mickael, Proust, Maxime, Ronden, Dennis, Serikov, Arkady, Suarez, Alejandro, Tanchuk, Victor, Udintsev, Victor, Vacas, Christian, Walsh, Michael, and Zhai, Yuhu

Published
2016
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13. Development of Primary Vacuum Windows for ITER Diagnostics

Author

Udintsev, Victor S., primary, Maquet, Philippe, additional, Gimbert, Nathalie, additional, Giacomin, Thibaud, additional, Guirao, Julio, additional, Iglesias, Silvia, additional, Vacas, Chirstian, additional, Walsh, Michael J., additional, Pak, Sunil, additional, Conway, Brendan, additional, Dapena, Miguel, additional, Drevon, Jean-Marc, additional, Eaton, Glenn, additional, Hughes, Shawn, additional, Darby, Tim, additional, and Bamber, Rob, additional

Published
2019
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