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9 results on '"Nicolas De Angelis"'

1. Design and Test of a Calibration System for Avalanche Photodiodes Used in X-Ray Compton Polarimeters for Space

Author

Andrea Alimenti, Fabrizio Cologgi, Sergio Fabiani, Kostiantyn Torokhtii, Enrico Silva, Ettore Del Monte, Ilaria Baffo, Sergio Bonomo, Daniele Brienza, Riccardo Campana, Mauro Centrone, Giulia De Iulis, Enrico Costa, Giovanni Cucinella, Andrea Curatolo, Nicolas De Angelis, Giovanni De Cesare, Andrea Del Re, Sergio Di Cosimo, Simone Di Filippo, Alessandro Di Marco, Giuseppe Di Persio, Immacolata Donnarumma, Pierluigi Fanelli, Abhay Kumar, Paolo Leonetti, Alfredo Locarini, Pasqualino Loffredo, Giovanni Lombardi, Gabriele Minervini, Dario Modenini, Fabio Muleri, Silvia Natalucci, Andrea Negri, Massimo Perelli, Monia Rossi, Alda Rubini, Emanuele Scalise, Paolo Soffitta, Andrea Terracciano, Paolo Tortora, Emanuele Zaccagnino, and Alessandro Zambardi

Subjects
X-ray polarimeter, avalanche photodiode, measurement system for APD calibration, Chemical technology, TP1-1185
Abstract

The development and calibration of a measurement system designed for assessing the performance of the avalanche photodiodes (APDs) used in the Compton scattering polarimeter of the CUSP project is discussed in this work. The designed system is able to characterize the APD gain GAPD and energy resolution across a wide range of temperatures T (from −20 °C to +60 °C) and bias voltages Vbias (from 260 V to 410 V). The primary goal was to experimentally determine the GAPD dependence on the T and Vbias in order to establish a strategy for stabilizing GAPD by compensating for T fluctuations, acting on Vbias. The results demonstrate the system capability to accurately characterize APD behavior and develop feedback mechanisms to ensure its stable operation. This work provides a robust framework for calibrating APDs for space environments. It is essential for the successful implementation of spaceborne polarimeters such as the Compton scattering polarimeter foreseen aboard the CUbeSat Solar Polarimeter (CUSP) mission under development to perform solar flare X-ray polarimetry.

Published
2024
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2. Considerations on Possible Directions for a Wide Band Polarimetry X-ray Mission

Author

Paolo Soffitta, Enrico Costa, Nicolas De Angelis, Ettore Del Monte, Klaus Desch, Alessandro Di Marco, Giuseppe Di Persio, Sergio Fabiani, Riccardo Ferrazzoli, Markus Gruber, Takahashi Hiromitsu, Saba Imtiaz, Philip Kaaret, Jochen Kaminski, Dawoon E. Kim, Fabian Kislat, Henric Krawczynski, Fabio La Monaca, Carlo Lefevre, Hemanth Manikantan, Herman L. Marshall, Romana Mikusincova, Alfredo Morbidini, Fabio Muleri, Stephen L. O’Dell, Takashi Okajima, Mark Pearce, Vladislavs Plesanovs, Brian D. Ramsey, Ajay Ratheesh, Alda Rubini, Shravan Vengalil Menon, and Martin C. Weisskopf

Subjects
X-rays, astronomy, polarimetry, Astronomy, QB1-991
Abstract

The Imaging X-ray Polarimetry Explorer (IXPE) has confirmed that X-ray polarimetry is a valuable tool in astronomy, providing critical insights into the emission processes and the geometry of compact objects. IXPE was designed to be sensitive in the 2–8 keV energy range for three primary reasons: (1) celestial X-ray sources are bright within this range, (2) the optics are effective, and (3) most sources across various classes were expected to exhibit some level of polarization. Indeed, IXPE is a great success, and its discoveries are necessitating the revision of many theoretical models for numerous sources. However, one of IXPE’s main limitations is its relatively narrow energy band, coupled with rapidly declining efficiency. In this paper, we will demonstrate the benefits of devising a mission focused on a broader energy band (0.1–79 keV). This approach leverages current technologies that align well with theoretical expectations and builds on the successes of IXPE.

Published
2024
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3. Future Perspectives for Gamma-ray Burst Detection from Space

Author

Enrico Bozzo, Lorenzo Amati, Wayne Baumgartner, Tzu-Ching Chang, Bertrand Cordier, Nicolas De Angelis, Akihiro Doi, Marco Feroci, Cynthia Froning, Jessica Gaskin, Adam Goldstein, Diego Götz, Jon E. Grove, Sylvain Guiriec, Margarita Hernanz, C. Michelle Hui, Peter Jenke, Daniel Kocevski, Merlin Kole, Chryssa Kouveliotou, Thomas Maccarone, Mark L. McConnell, Hideo Matsuhara, Paul O’Brien, Nicolas Produit, Paul S. Ray, Peter Roming, Andrea Santangelo, Michael Seiffert, Hui Sun, Alexander van der Horst, Peter Veres, Jianyan Wei, Nicholas White, Colleen Wilson-Hodge, Daisuke Yonetoku, Weimin Yuan, and Shuang-Nan Zhang

Subjects
γ-ray astrophysics, Gamma-ray bursts, X-ray polarimetry, X-ray surveys, X-ray instrumentation, Elementary particle physics, QC793-793.5
Abstract

Since their first discovery in the late 1960s, gamma-ray bursts have attracted an exponentially growing interest from the international community due to their central role in the most highly debated open questions of the modern research of astronomy, astrophysics, cosmology, and fundamental physics. These range from the intimate nuclear composition of high-density material within the core of ultra-dense neuron stars, to stellar evolution via the collapse of massive stars, the production and propagation of gravitational waves, as well as the exploration of the early universe by unveiling the first stars and galaxies (assessing also their evolution and cosmic re-ionization). GRBs in the past ∼50 years have stimulated the development of cutting-edge technological instruments for observations of high-energy celestial sources from space, leading to the launch and successful operations of many different scientific missions (several of them still in data-taking mode currently). In this review, we provide a brief description of the GRB-dedicated missions from space being designed and developed for the future. The list of these projects, not meant to be exhaustive, shall serve as a reference to interested readers to understand what is likely to come next to lead the further development of GRB research and the associated phenomenology.

Published
2024
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4. Proton Irradiation of SiPM arrays for POLAR-2

Author

Slawomir Mianowski, Nicolas De Angelis, Johannes Hulsman, Merlin Kole, Tomasz Kowalski, Sebastian Kusyk, Hancheng Li, Zuzanna Mianowska, Jerzy Mietelski, Agnieszka Pollo, Dominik Rybka, Jianchao Sun, Jan Swakon, Damian Wrobel, and Xin Wu

Subjects
Physics - Instrumentation and Detectors, Space and Planetary Science, FOS: Physical sciences, Astronomy and Astrophysics, Instrumentation and Detectors (physics.ins-det), Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

POLAR-2 is a space-borne polarimeter, built to investigate the polarization of Gamma-Ray Bursts and help elucidate their mechanisms. The instrument is targeted for launch in 2024 or 2025 aboard the China Space Station and is being developed by a collaboration between institutes from Switzerland, Germany, Poland and China. The instrument will orbit at altitudes between 340km and 450km with an inclination of 42$^{\circ}$ and will be subjected to background radiation from cosmic rays and solar events. It is therefore pertinent to better understand the performance of sensitive devices under space-like conditions. In this paper we focus on the radiation damage of the silicon photomultiplier arrays S13361-6075NE-04 and S14161-6050HS-04 from Hamamatsu. The S13361 are irradiated with 58MeV protons at several doses up to 4.96Gy, whereas the newer series S14161 are irradiated at doses of 0.254Gy and 2.31Gy. Their respective performance degradation due to radiation damage are discussed. The equivalent exposure time in space for silicon photomultipliers inside POLAR-2 with a dose of 4.96Gy is 62.9 years (or 1.78 years when disregarding the shielding from the instrument). Primary characteristics of the I-V curves are an increase in the dark current and dark counts, mostly through cross-talk events. Annealing processes at $25^{\circ}C$ were observed but not studied in further detail. Biasing channels while being irradiated have not resulted in any significant impact. Activation analyses showed a dominant contribution of $\beta^{+}$ particles around 511keV. These resulted primarily from copper and carbon, mostly with decay times shorter than the orbital period., Comment: accepted for publication in Experimental Astronomy

Published
2022

5. The digital data processing concepts of the large area detector and the wide field monitor onboard eXTP

Author

Hao Xiong, Andrea Argan, David Baudin, Jörg Bayer, Florent Bouyjou, Nicolas De Angelis, Ettore Del Monte, Yuri Evangelista, Yannick Favre, Marco Feroci, José-Luis Galvez, Olivier Gevin, Paul Hedderman, Margarita Hernanz, Merlin R. Kole, Aline Meuris, Samuel Pliego-Caballero, Andrea Santangelo, Chris Tenzer, Alessio Trois, Xianqi Wang, and Gianluigi Zampa

Published
2022
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6. Gamma-Ray Polarimetry of the Crab Pulsar Observed by POLAR

Author

Han-Cheng Li, Nicolas Produit, Shuang-Nan Zhang, Merlin Kole, Jian-Chao Sun, Ming-Yu Ge, Nicolas De Angelis, Johannes Hulsman, Zheng-Heng Li, Li-Ming Song, Teresa Tymieniecka, Bo-Bing Wu, Xin Wu, Yuan-Hao Wang, Shao-Lin Xiong, Yong-Jie Zhang, Yi Zhao, and Shi-Jie Zheng

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Space and Planetary Science, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

The X/$\gamma$ ray polarimetry of the Crab pulsar/nebula is believed to hold crucial information on their emission models. In the past, several missions have shown evidence of polarized emission from the Crab. The significance of these measurements remains however limited. New measurements are therefore required. POLAR is a wide Field of View Compton-scattering polarimeter (sensitive in 50-500 keV) onboard the Chinese spacelab Tiangong-2 which took data from September 2016 to April 2017. Although not designed to perform polarization measurements of pulsars, we present here a novel method which can be applied to POLAR as well as that of other wide Field of View polarimeters. The novel polarimetric joint-fitting method for the Crab pulsar observations with POLAR, allows us to obtain constraining measurements of the pulsar component. The best fitted values and corresponding 1$\sigma$ deviations for the averaged phase interval: (PD=$14\substack{+15 \\ -10}$\%, PA=$108\substack{+33 \\ -54} ^{\circ}$), for Peak 1: (PD=$17\substack{+18 \\ -12}$\%, PA=$174\substack{+39 \\ -36} ^{\circ}$) and for Peak 2: (PD=$16\substack{+16 \\ -11}$\%, PA=$78\substack{+39 \\ -30} ^{\circ}$). Further more, the 3$\sigma$ upper limits on the polarization degree are for the averaged phase interval (55\%), Peak 1 (66\%) and Peak 2 (57\%). Finally, to illustrate the capabilities of this method in the future, we simulated two years observation to the Crab pulsar with POLAR-2. The results show that POLAR-2 is able to confirm the emission to be polarized with $5\sigma$ and $4\sigma$ confidence level if the Crab pulsar is polarized at $20\%$ and $10\%$ respectively., Comment: 14 pages, 18 figures, 2 tables; accepted for publication in MNRAS

Published
2022

7. The Large Area Detector onboard the eXTP mission

Author

Marco Feroci, Giovanni Ambrosi, Filippo Ambrosino, Matias Antonelli, Andrea Argan, Viktor Babinec, Marco Barbera, Jörg Bayer, Pierluigi Bellutti, Bruna Bertucci, Giuseppe Bertuccio, Xingzi Bi, Mirko Boezio, Walter Bonvicini, Giacomo Borghi, Enrico Bozzo, David Baudin, Florent Bouyjou, Daniele Brienza, Franck Cadoux, Riccardo Campana, Jiewei Cao, Elisabetta Cavazzuti, Francesco Ceraudo, Tianxiang Chen, Wen Chen, Daniela Cirrincione, Nicolas De Angelis, Alessandra De Rosa, Ettore Del Monte, Sergio Di Cosimo, Giuseppe Dilillo, Roman Dohnal, Immacolata Donnarumma, Yuri Evangelista, Qingmei Fan, Yannick Favre, Emanuele Fiandrini, Francesco Ficorella, Fabio Fuschino, Na Gao, Olivier Gevin, Marco Grassi, Manuel Guedel, Xingbo Han, Huilin He, Paul Hedderman, jan-willem den herder, Richard Hynek, Bing Hong, Ge Jin, Merlin Kole, Vladimír Karas, Martin Komarek, Claudio Labanti, Loghui Li, Tianming Li, Hong Liang, Olivier Limousin, Rui Liu, Ugo Lo Cicero, Jens Lohering, Giovanni Lombardi, Fang-Jun Lu, Tao Luo, Piero Malcovati, Hanqi Mao, Andrea Marinucci, Filippo Mele, Vasco Mendes, Martin Merkl, Aline Meuris, Małgorzata Michalska, Alfredo Morbidini, Gianluca Morgante, Fabio Muleri, Riccardo Munini, Lorenzo Mussolin, Barbara Negri, Petr Novak, Witold Nowosielski, Alessio Nuti, Piotr Orleanski, Roland Ottensamer, Luigi Pacciani, Stephane Paltani, Teng Pan, Giancarlo Pepponi, Emanuele Perinati, Raffaele Piazzolla, Antonino Picciotto, Samuel Pliego, Alexandre Rachevski, Irina Rashevskaia, Andrea Santangelo, Roberto Serafinelli, Stéphane Schanne, Konrad Skup, Libor Sveda, Jiri Svoboda, Christopher Tenzer, Michela Todaro, Gabreil Torok, Alessio Trois, Andrea Vacchi, Enrico Virgilli, Hao Xiong, Jian Wang, Xianqi Wang, Berend Winter, Xin Wu, Yupeng Xu, Gianluigi Zampa, Nicola Zampa, Andrei Zdziarski, Long Zhang, Shu Zhang, Shuang-Nan Zhang, Wenda Zhang, Xiaoli Zhang, Zhen Zhang, Yupeng Zhou, Nicola Zorzi, den Herder, Jan-Willem A., Feroci, Marco, Ambrosi, Giovanni, Ambrosino, Filippo, Antonelli, Matia, Argan, Andrea, Babinec, Viktor, Barbera, Marco, Bayer, Jörg, Bellutti, Pierluigi, Bertucci, Bruna, Bertuccio, Giuseppe, Bi, Xingzi, Boezio, Mirko, Bonvicini, Walter, Borghi, Giacomo, Bozzo, Enrico, Baudin, David, Bouyjou, Florent, Brienza, Daniele, Cadoux, Franck, Campana, Riccardo, Cao, Jiewei, Cavazzuti, Elisabetta, Ceraudo, Francesco, Chen, Tianxiang, Chen, Wen, Cirrincione, Daniela, De Angelis, Nicola, De Rosa, Alessandra, Del Monte, Ettore, Di Cosimo, Sergio, Dilillo, Giuseppe, Dohnal, Roman, Donnarumma, Immacolata, Evangelista, Yuri, Fan, Qingmei, Favre, Yannick, Fiandrini, Emanuele, Ficorella, Francesco, Fuschino, Fabio, Gao, Na, Gevin, Olivier, Grassi, Marco, Guedel, Manuel, Han, Xingbo, He, Huilin, Hedderman, Paul, den herder, jan-willem, Hynek, Richard, Hong, Bing, Jin, Ge, Kole, Merlin, Karas, Vladimír, Komarek, Martin, Labanti, Claudio, Li, Loghui, Li, Tianming, Liang, Hong, Limousin, Olivier, Liu, Rui, Lo Cicero, Ugo, Lohering, Jen, Lombardi, Giovanni, Lu, Fang-Jun, Luo, Tao, Malcovati, Piero, Mao, Hanqi, Marinucci, Andrea, Mele, Filippo, Mendes, Vasco, Merkl, Martin, Meuris, Aline, Michalska, Małgorzata, Morbidini, Alfredo, Morgante, Gianluca, Muleri, Fabio, Munini, Riccardo, Mussolin, Lorenzo, Negri, Barbara, Novak, Petr, Nowosielski, Witold, Nuti, Alessio, Orleanski, Piotr, Ottensamer, Roland, Pacciani, Luigi, Paltani, Stephane, Pan, Teng, Pepponi, Giancarlo, Perinati, Emanuele, Piazzolla, Raffaele, Picciotto, Antonino, Pliego, Samuel, Rachevski, Alexandre, Rashevskaia, Irina, Santangelo, Andrea, Serafinelli, Roberto, Schanne, Stéphane, Skup, Konrad, Sveda, Libor, Svoboda, Jiri, Tenzer, Christopher, Todaro, Michela, Torok, Gabreil, Trois, Alessio, Vacchi, Andrea, Virgilli, Enrico, Xiong, Hao, Wang, Jian, Wang, Xianqi, Winter, Berend, Wu, Xin, Xu, Yupeng, Zampa, Gianluigi, Zampa, Nicola, Zdziarski, Andrei, Zhang, Long, Zhang, Shu, Zhang, Shuang-Nan, Zhang, Wenda, Zhang, Xiaoli, Zhang, Zhen, Zhou, Yupeng, and Zorzi, Nicola

Subjects
Settore FIS/05 - Astronomia E Astrofisica, EXTP, LAD, Silicon Drift Detector, X-ray timing
Abstract

The Large Area Detector (LAD) is the high-throughput, spectral-timing instrument onboard the eXTP mission, a flagship mission of the Chinese Academy of Sciences and the China National Space Administration, with a large European participation coordinated by Italy and Spain. The eXTP mission is currently performing its phase B study, with a target launch at the end-2027. The eXTP scientific payload includes four instruments (SFA, PFA, LAD and WFM) offering unprecedented simultaneous wide-band X-ray timing and polarimetry sensitivity. The LAD instrument is based on the design originally proposed for the LOFT mission. It envisages a deployed 3.2 m2 effective area in the 2-30 keV energy range, achieved through the technology of the large-area Silicon Drift Detectors - offering a spectral resolution of up to 200 eV FWHM at 6 keV - and of capillary plate collimators - limiting the field of view to about 1 degree. In this paper we will provide an overview of the LAD instrument design, its current status of development and anticipated performance.

Published
2022

8. Calibration and operation of SiPM-based cameras for gamma-ray astronomy in presence of high night-sky light

Author

M. Więcek, Petr Schovanek, Stanislav Michal, Miroslav Palatka, Michał Ostrowski, Yannick Favre, J. Borkowski, Pawel Rajda, Dominik Neise, Jiri Blazek, Dorota Smakulska, Jakub Juryšek, Karol Seweryn, Matteo Balbo, Jacek Świerblewski, Teresa Montaruli, Petr Hamal, Isaac Troyano Pujadas, Cyril Martin Alispach, V. Sliusar, P. Paśko, D. della Volpe, Mira Grudzińska, Etienne Lyard, Imen Al Samarai, T. Bulik, Jerzy Kasperek, Andrzej Kotarba, J. Blocki, Miroslav Pech, Victor Coco, Henry Przybilski, Łukasz Stawarz, Ladislav Chytka, Matthieu Heller, Jacek Niemiec, K. Ziȩtara, Dorota Sobczyńska, Jerzy Michalowski, Paweł Świerk, Miroslav Hrabovsky, Rafał Moderski, Anastasia Maria Barbano, Katarzyna Koncewicz, V. Beshley, T.R.N. Ekoume, Frank Raphael Cadoux, Paweł Rozwadowski, Roland Walter, Adrian Biland, Dusan Mandat, Bartłomiej Pilszyk, Petr Travnicek, Nicolas De Angelis, Y. Renier, Tomasz Gieras, E. Mach, A. Zagdański, and Andrii Nagai

Subjects
Pixel, business.industry, Computer science, Emphasis (telecommunications), FOS: Physical sciences, Gamma-ray astronomy, law.invention, Telescope, Optics, Silicon photomultiplier, law, Calibration, business, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Cherenkov radiation, Camera resectioning
Abstract

The next generation of Cherenkov telescope cameras feature Silicon Photo Multipliers (SiPM), which can guarantee excellent performance and allow for observation also under moonlight, increasing duty-cycle and therefore the physics reach. A 4 m-diameter Davies-Cotton prototype telescope with a 9-degree optical FoV and a 1296-pixel SiPM camera, has been designed to meet the requirements of the next generation of ground-based gamma-ray observatories at the highest energies. The large-scale production of the telescopes for array deployment has required the development of a fully automated calibration strategy which relies on a dedicated hardware, the Camera Test Setup (CTS). For each camera pixel, the CTS is equipped with two LEDs, one operated in pulsed mode to reproduce signal and one in continuous mode to reproduce night-sky background. In this contribution we will present the camera calibration strategy, from the laboratory measurement to the on-site monitoring with emphasis on the results obtained with the first camera prototype. In addition, key performances such as charge resolution, time resolution and trigger efficiencies and their degradation with increasing night-sky background level will be presented., PoS: Proceedings of Science, 358, ISSN:1824-8039, Proceedings of 36th International Cosmic Ray Conference (ICRC 2019)

9. The SST-1M project for the Cherenkov Telescope Array

Author

Teresa Montaruli, Rafał Moderski, Yannick Favre, Dusan Mandat, Bartłomiej Pilszyk, Karol Seweryn, Andrii Nagai, Petr Hamal, Katarzyna Koncewicz, Etienne Lyard, Ladislav Chytka, V. Beshley, Paweł Rozwadowski, T.R.N. Ekoume, Tomasz Gieras, Cta Sst M Project, Anastasia Maria Barbano, Jerzy Kasperek, A. Zagdański, Stanislav Michal, T. Bulik, Dorota Smakulska, M. Więcek, Miroslav Pech, Roland Walter, Cyril Martin Alispach, Henry Przybilski, Jacek Niemiec, Miroslav Palatka, Pawel Rajda, Paweł Świerk, Matteo Balbo, Jacek Świerblewski, Jerzy Michalowski, E. Mach, Dorota Sobczyńska, D. della Volpe, Y. Renier, J. Blocki, Vitalii Sliusar, Michał Ostrowski, Isaac Troyano Pujadas, Jiri Blazek, Jakub Juryšek, Andrzej Kotarba, M. Heller, Mira Grudzińska, Petr Schovanek, Dominik Neise, Victor Coco, Łukasz Stawarz, Frank Raphael Cadoux, Petr Travnicek, Miroslav Hrabovsky, Adrian Biland, Nicolas De Angelis, K. Zietara, Pawel Pasko, J. Borkowski, and Imen Al Samarai

Subjects
Telescope, Pathfinder, law, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Environmental science, Cherenkov Telescope Array, Cherenkov radiation, Astrophysics::Galaxy Astrophysics, Remote sensing, law.invention
Abstract

The SST-1M project, run by a Consortium of institutes from Czech Republic, Poland and Switzerland, has been proposed as a solution for implementing the small-size telescope array of the southern site of the Cherenkov Telescope Array. The technology is a pathfinder for efficient production of cost-effective imaging air Cherenkov telescopes. We report on the main system features and recent upgrades, the performances validation and the operation campaign carried out in 2018.

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