1
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Rigamonti D, Dal Molin A, Gorini G, Marcer G, Nocente M, Rebai M, Craciunescu T, Ghani Z, Kiptily V, Maslov M, Shevelev A, Zohar A, Tardocchi M. Role of neutron attenuators for gamma-ray measurements in deuterium-tritium magnetic confinement plasmas. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2022; 93:093515. [PMID: 36182493 DOI: 10.1063/5.0101783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 07/29/2022] [Indexed: 06/16/2023]
Abstract
The Joint European Torus (JET) is the only tokamak in the world able to operate in Deuterium-Tritium (DT) plasmas. A successful DT experimental campaign, the DTE2, has recently been carried out, providing unique opportunities for studying both physics and technological aspects. In particular, it allowed us to investigate and benchmark the solutions adopted to attenuate the significant 14 MeV neutron flux, needed to enable high-resolution gamma-ray spectroscopy measurements on a tokamak. While in inertial confinement experiments, gamma-rays and neutrons are discriminated through time-of-flight techniques; in magnetic confinement experiments, the neutron attenuators are a key element to allow gamma-ray measurements in order to reestablish the 1 × 105 to 1 background to signal ratio. In this paper, the role of the reference neutron attenuators at JET, based on LiH, has been analyzed and described.
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Affiliation(s)
- D Rigamonti
- Institute for Plasma Science and Technology, National Research Council of Italy, Milan, Italy
| | - A Dal Molin
- Institute for Plasma Science and Technology, National Research Council of Italy, Milan, Italy
| | - G Gorini
- Institute for Plasma Science and Technology, National Research Council of Italy, Milan, Italy
| | - G Marcer
- Department of Physics, University of Milano-Bicocca, Milan, Italy
| | - M Nocente
- Institute for Plasma Science and Technology, National Research Council of Italy, Milan, Italy
| | - M Rebai
- Institute for Plasma Science and Technology, National Research Council of Italy, Milan, Italy
| | - T Craciunescu
- Institute of Atomic Physics, Magurele-Bucharest, Romania
| | - Z Ghani
- Culham Centre for Fusion Energy, Abingdon, United Kingdom
| | - V Kiptily
- Culham Centre for Fusion Energy, Abingdon, United Kingdom
| | - M Maslov
- Culham Centre for Fusion Energy, Abingdon, United Kingdom
| | - A Shevelev
- Ioffe Institute, St. Petersburg, Russian Federation
| | - A Zohar
- Reactor Physics Department, Jožef Stefan Institute, Ljubljana, Slovenia
| | - M Tardocchi
- Institute for Plasma Science and Technology, National Research Council of Italy, Milan, Italy
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2
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A maximum likelihood tomographic method applied to JET gamma ray emission during the current quench. FUSION ENGINEERING AND DESIGN 2021. [DOI: 10.1016/j.fusengdes.2021.112637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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3
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Panontin E, Rigamonti D, Nocente M, Dal Molin A, Broslawski A, Craciunescu T, Croci G, Cruz N, Figueiredo J, Giacomelli L, Gorini G, Gosk M, Kaveney G, Kazakov YO, Kiptily V, Korolczuk S, Marcer G, Murari A, Perelli Cippo E, Salewski M, Urban A, Zychor I, Tardocchi M. First spatially resolved measurements of the D- 3He α-particle source with the upgraded JET gamma-ray camera. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2021; 92:053529. [PMID: 34243238 DOI: 10.1063/5.0043776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 04/07/2021] [Indexed: 06/13/2023]
Abstract
The Joint European Torus (JET) gamma-ray camera has been recently upgraded with the installation of new gamma-ray detectors, based on LaBr3(Ce) scintillation crystals, which add spectroscopic capability to the existing system allowing measurements with good energy resolution (5% at 0.622 MeV), a dynamic range from hundreds of keV up to about 30 MeV, and high counting rate capabilities of MCps. First gamma-ray measurements during the C38 campaign of the JET have been successfully carried out, in particular, in D-3He plasmas from three-ion ion cyclotron resonance heating experiments, where the detection of 16.4 MeV γ-rays from D + 3He → γ + 5Li reactions with the gamma-ray camera upgrade allowed determining the spatial profile of alpha particles born in D + 3He fusion reactions.
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Affiliation(s)
- E Panontin
- Dipartimento di Fisica "G. Occhialini", Università degli Studi di Milano-Bicocca, 20126 Milano, Italy
| | - D Rigamonti
- Istituto per la Scienza e Tecnologia dei Plasmi, Consiglio Nazionale delle Ricerche, 20126 Milano, Italy
| | - M Nocente
- Dipartimento di Fisica "G. Occhialini", Università degli Studi di Milano-Bicocca, 20126 Milano, Italy
| | - A Dal Molin
- Dipartimento di Fisica "G. Occhialini", Università degli Studi di Milano-Bicocca, 20126 Milano, Italy
| | - A Broslawski
- Narodowe Centrum Badań Jądrowych (NCBJ), 05-400 Otwock-Swierk, Poland
| | - T Craciunescu
- National Institute for Laser, Plasma and Radiation Physics, 077125 Magurele-Bucharest, Romania
| | - G Croci
- Dipartimento di Fisica "G. Occhialini", Università degli Studi di Milano-Bicocca, 20126 Milano, Italy
| | - N Cruz
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - J Figueiredo
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - L Giacomelli
- Istituto per la Scienza e Tecnologia dei Plasmi, Consiglio Nazionale delle Ricerche, 20126 Milano, Italy
| | - G Gorini
- Dipartimento di Fisica "G. Occhialini", Università degli Studi di Milano-Bicocca, 20126 Milano, Italy
| | - M Gosk
- Narodowe Centrum Badań Jądrowych (NCBJ), 05-400 Otwock-Swierk, Poland
| | - G Kaveney
- Culham Centre for Fusion Energy, OX14 3EB Culham, United Kingdom
| | - Ye O Kazakov
- Laboratory for Plasma Physics LPP-ERM/KMS, 1000 Brussels, Belgium
| | - V Kiptily
- Culham Centre for Fusion Energy, OX14 3EB Culham, United Kingdom
| | - S Korolczuk
- Narodowe Centrum Badań Jądrowych (NCBJ), 05-400 Otwock-Swierk, Poland
| | - G Marcer
- Dipartimento di Fisica "G. Occhialini", Università degli Studi di Milano-Bicocca, 20126 Milano, Italy
| | - A Murari
- EUROfusion Programme Management Unit, Culham Science Centre, OX14 3DB Abingdon, United Kingdom
| | - E Perelli Cippo
- Istituto per la Scienza e Tecnologia dei Plasmi, Consiglio Nazionale delle Ricerche, 20126 Milano, Italy
| | - M Salewski
- Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - A Urban
- Narodowe Centrum Badań Jądrowych (NCBJ), 05-400 Otwock-Swierk, Poland
| | - I Zychor
- Narodowe Centrum Badań Jądrowych (NCBJ), 05-400 Otwock-Swierk, Poland
| | - M Tardocchi
- Istituto per la Scienza e Tecnologia dei Plasmi, Consiglio Nazionale delle Ricerche, 20126 Milano, Italy
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4
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Dal Molin A, Fumagalli L, Nocente M, Rigamonti D, Tardocchi M, Giacomelli L, Panontin E, Lvovskiy A, Paz-Soldan C, Edietis NW, Gorini G. Novel compact hard x-ray spectrometer with MCps counting rate capabilities for runaway electron measurements on DIII-D. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2021; 92:043517. [PMID: 34243482 DOI: 10.1063/5.0043762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/18/2021] [Indexed: 06/13/2023]
Abstract
A novel compact spectrometer optimized for the measurement of hard x rays generated by runaway electrons is presented. The detector is designed to be installed in the fan-shaped collimator of the gamma-ray imager diagnostic at the DIII-D tokamak. The spectrometer is based on a 1 × 1 cm2 cerium doped yttrium aluminum perovskite scintillator crystal coupled with a silicon photomultiplier. The detector dynamic energy range is in excess of 10 MeV, with an energy resolution of ∼10% at 661.7 keV. The fast detector signal (≈70 ns full width at half maximum) allows for operation at counting rates in excess of 1 MCps. The gain stability of the system can be monitored in real time using a light-emitting diode embedded in the instrument. The detector is expected to be deployed in the forthcoming DIII-D runaway electron experimental campaign.
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Affiliation(s)
- A Dal Molin
- Dipartimento di Fisica, Università degli Studi di Milano-Bicocca, 20126 Milan, Italy
| | - L Fumagalli
- Dipartimento di Fisica, Università degli Studi di Milano-Bicocca, 20126 Milan, Italy
| | - M Nocente
- Dipartimento di Fisica, Università degli Studi di Milano-Bicocca, 20126 Milan, Italy
| | - D Rigamonti
- Istituto per la Scienza e Tecnologia dei Plasmi, CNR, 20126 Milan, Italy
| | - M Tardocchi
- Istituto per la Scienza e Tecnologia dei Plasmi, CNR, 20126 Milan, Italy
| | - L Giacomelli
- Istituto per la Scienza e Tecnologia dei Plasmi, CNR, 20126 Milan, Italy
| | - E Panontin
- Dipartimento di Fisica, Università degli Studi di Milano-Bicocca, 20126 Milan, Italy
| | - A Lvovskiy
- General Atomics, San Diego, California 92127, USA
| | - C Paz-Soldan
- General Atomics, San Diego, California 92127, USA
| | - N W Edietis
- General Atomics, San Diego, California 92127, USA
| | - G Gorini
- Dipartimento di Fisica, Università degli Studi di Milano-Bicocca, 20126 Milan, Italy
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5
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Energetic Particle Diagnostics in Present Tokamaks and Challenges Towards a Burning Plasma. JOURNAL OF FUSION ENERGY 2018. [DOI: 10.1007/s10894-018-0206-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Giacomelli L, Rigamonti D, Nocente M, Rebai M, Tardocchi M, Cecconello M, Conroy S, Hjalmarsson A, Franke T, Biel W. Conceptual studies of gamma ray diagnostics for DEMO control. FUSION ENGINEERING AND DESIGN 2018. [DOI: 10.1016/j.fusengdes.2018.05.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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7
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Figueiredo J, Murari A, Perez Von Thun C, Marocco D, Tardocchi M, Belli F, García Muñoz M, Silva A, Craciunescu T, Blanchard P, Balboa I, Hawkes N, Carvalho IS, Tal B, Bernardo J, Zychor I. JET diagnostic enhancements testing and commissioning in preparation for DT scientific campaigns. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:10K119. [PMID: 30399696 DOI: 10.1063/1.5038548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 06/29/2018] [Indexed: 06/08/2023]
Abstract
In order to optimize the scientific exploitation of JET (Joint European Torus) during the upcoming deuterium-tritium experiments, a set of diagnostic systems is being enhanced. These upgrades focus mainly on the experimental and operational conditions expected during tritium campaigns. It should be stressed that measurements relevant for burning plasmas are specifically targeted. Previously non-available capabilities, such as a current measurement system fully covering all poloidal field circuits, are described in detail. Instrument descriptions, performance prediction, testing, and initial commissioning results of these systems are presented.
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Affiliation(s)
- J Figueiredo
- EUROfusion Programme Management Unit, Culham Science Centre, Abingdon, United Kingdom
| | - A Murari
- EUROfusion Programme Management Unit, Culham Science Centre, Abingdon, United Kingdom
| | - C Perez Von Thun
- EUROfusion Programme Management Unit, Culham Science Centre, Abingdon, United Kingdom
| | - D Marocco
- Unità Tecnica Fusione, ENEA C. R. Frascati, Via E. Fermi 45, 00044 Frascati, Roma, Italy
| | - M Tardocchi
- IFP-CNR, Via R. Cozzi 53, 20125 Milano, Italy
| | - F Belli
- Unità Tecnica Fusione, ENEA C. R. Frascati, Via E. Fermi 45, 00044 Frascati, Roma, Italy
| | | | - A Silva
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - T Craciunescu
- The National Institute for Laser, Plasma and Radiation Physics, Magurele, Bucharest, Romania
| | - P Blanchard
- Ecole Polytechnique Fédérale de Lausanne (EPFL), CRPP, CH-1015 Lausanne, Switzerland
| | - I Balboa
- CCFE, Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom
| | - N Hawkes
- CCFE, Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom
| | - I S Carvalho
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - B Tal
- Wigner Research Centre for Physics, P.O. Box 49, H-1525 Budapest, Hungary
| | - J Bernardo
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - I Zychor
- Narodowe Centrum Badań Jądrowych (NCBJ), 05-400 Otwock-Swierk, Poland
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Dal Molin A, Martinelli L, Nocente M, Rigamonti D, Abba A, Giacomelli L, Gorini G, Lvovskiy A, Muraro A, Tardocchi M. Development of a new compact gamma-ray spectrometer optimised for runaway electron measurements. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:10I134. [PMID: 30399979 DOI: 10.1063/1.5038803] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 06/25/2018] [Indexed: 06/08/2023]
Abstract
A new compact gamma-ray spectrometer was developed in order to optimise the measurement of bremsstrahlung radiation emitted from runaway electrons in the MeV range. The detector is based on a cerium doped lutetium-yttrium oxyorthosilicate (LYSO:Ce) scintillator coupled to a silicon photomultiplier and is insensitive to magnetic fields. A dedicated electronic board was developed to optimise the signal readout as well as for online control of the device. The detector combines a dynamic range up to 10 MeV with moderate energy non-linearity, counting rate capabilities in excess of 1 MHz, and an energy resolution that extrapolates to a few % in the MeV range, thus meeting the requirements for its application to runaway electron studies by bremsstrahlung measurements in the gamma-ray energy range.
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Affiliation(s)
- A Dal Molin
- Dipartimento di Fisica "G. Occhialini," Università degli Studi di Milano-Bicocca, Milano, Italy
| | - L Martinelli
- Dipartimento di Fisica "G. Occhialini," Università degli Studi di Milano-Bicocca, Milano, Italy
| | - M Nocente
- Dipartimento di Fisica "G. Occhialini," Università degli Studi di Milano-Bicocca, Milano, Italy
| | - D Rigamonti
- Istituto di Fisica del Plasma "P. Caldirola," CNR, Milano, Italy
| | - A Abba
- Nuclear Instruments, Lambrugo, Italy
| | - L Giacomelli
- Istituto di Fisica del Plasma "P. Caldirola," CNR, Milano, Italy
| | - G Gorini
- Dipartimento di Fisica "G. Occhialini," Università degli Studi di Milano-Bicocca, Milano, Italy
| | - A Lvovskiy
- Oak Ridge Associated Universities, Oak Ridge, Tennessee 37831, USA
| | - A Muraro
- Istituto di Fisica del Plasma "P. Caldirola," CNR, Milano, Italy
| | - M Tardocchi
- Istituto di Fisica del Plasma "P. Caldirola," CNR, Milano, Italy
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9
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Rigamonti D, Broslawski A, Fernandes A, Figueiredo J, Giacomelli L, Gorini G, Gosk M, Kaveney G, Kiptily V, Korolczuk S, Murari A, Nocente M, Pereira RC, Popovichev S, Santos B, Urban A, Zychor I, Tardocchi M. The upgraded JET gamma-ray cameras based on high resolution/high count rate compact spectrometers. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:10I116. [PMID: 30399923 DOI: 10.1063/1.5038839] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Accepted: 06/19/2018] [Indexed: 06/08/2023]
Abstract
The JET gamma-ray cameras have been recently upgraded within the gamma-ray camera upgrade project in support of development of JET high performance deuterium plasma scenarios and in preparation of deuterium-tritium experiments. New, dedicated detectors based on a LaBr3 crystal and silicon photo-multipliers have been developed and replaced pre-existing CsI detectors in all 19 channels. The new instrument gives opportunity of making two-dimensional gamma-ray measurements with a counting rate capability exceeding 1 MCounts/s (MCps) and energy resolution better than 5% at 1.1 MeV. The upgrade is of relevance for fast ion and runaway electron physics studies in high performance deuterium discharges and also in plasmas with tritium at neutron yields in the range up to about 5 × 1017 n/s.
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Affiliation(s)
- D Rigamonti
- EUROfusion Consortium, JET, Culham Science Centre, Abingdon OX14 3DB, United Kingdom
| | - A Broslawski
- Istituto di Fisica del Plasma "P. Caldirola", CNR, Milano, Italy
| | - A Fernandes
- Narodowe Centrum Badań Jądrowych (NCBJ), 05-400 Otwock-Swierk, Poland
| | - J Figueiredo
- Narodowe Centrum Badań Jądrowych (NCBJ), 05-400 Otwock-Swierk, Poland
| | - L Giacomelli
- EUROfusion Consortium, JET, Culham Science Centre, Abingdon OX14 3DB, United Kingdom
| | - G Gorini
- EUROfusion Consortium, JET, Culham Science Centre, Abingdon OX14 3DB, United Kingdom
| | - M Gosk
- Istituto di Fisica del Plasma "P. Caldirola", CNR, Milano, Italy
| | - G Kaveney
- Dipartimento di Fisica "G. Occhialini", Università degli Studi di Milano-Bicocca, Milano, Italy
| | - V Kiptily
- Dipartimento di Fisica "G. Occhialini", Università degli Studi di Milano-Bicocca, Milano, Italy
| | - S Korolczuk
- Istituto di Fisica del Plasma "P. Caldirola", CNR, Milano, Italy
| | - A Murari
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - M Nocente
- EUROfusion Consortium, JET, Culham Science Centre, Abingdon OX14 3DB, United Kingdom
| | - R C Pereira
- Narodowe Centrum Badań Jądrowych (NCBJ), 05-400 Otwock-Swierk, Poland
| | - S Popovichev
- Dipartimento di Fisica "G. Occhialini", Università degli Studi di Milano-Bicocca, Milano, Italy
| | - B Santos
- Narodowe Centrum Badań Jądrowych (NCBJ), 05-400 Otwock-Swierk, Poland
| | - A Urban
- Istituto di Fisica del Plasma "P. Caldirola", CNR, Milano, Italy
| | - I Zychor
- Istituto di Fisica del Plasma "P. Caldirola", CNR, Milano, Italy
| | - M Tardocchi
- EUROfusion Consortium, JET, Culham Science Centre, Abingdon OX14 3DB, United Kingdom
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10
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11
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New FPGA based hardware implementation for JET gamma-ray camera upgrade. FUSION ENGINEERING AND DESIGN 2018. [DOI: 10.1016/j.fusengdes.2018.02.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Boltruczyk G, Broslawski A, Gosk M, Korolczuk S, Kwiatkowski R, Linczuk M, Urban A, Bielecki J, Costa Pereira R, Fernandes A, Figueiredo J, Kiptily V, Murari A, Nocente M, Perseo V, Rigamonti D, Santos B, Tardocchi M, Zychor I. Development of MPPC-based detectors for high count rate DT campaigns at JET. FUSION ENGINEERING AND DESIGN 2017. [DOI: 10.1016/j.fusengdes.2017.03.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Figueiredo J, Murari A, Perez Von Thun C, Marocco D, Tardocchi M, Belli F, García Muñoz M, Silva A, Soare S, Craciunescu T, Santala M, Blanchard P, Balboa I, Hawkes N. JET diagnostic enhancements in preparation for DT operations. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2016; 87:11D443. [PMID: 27910612 DOI: 10.1063/1.4962247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In order to complete the exploitation of the JET ITER-like Wall and to take full benefit from deuterium-tritium experiments on JET, a set of diagnostic system refurbishments or upgrades is in progress. These diagnostic enhancements focus mainly on neutron, gamma, fast ions, instabilities, and operations support. These efforts intend to provide better spatial, temporal, and energy resolution while increasing measurement coverage. Also previously non-existing capabilities, such as Doppler reflectometry is now available for scientific exploitation. Guaranteeing diagnostic reliability and consistency during the expected DT conditions is also a critical objective of the work and systems being implemented. An overview of status and scope of the ongoing projects is presented.
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Affiliation(s)
- J Figueiredo
- EUROfusion Programme Management Unit, Culham Science Centre, Abingdon, United Kingdom
| | - A Murari
- EUROfusion Programme Management Unit, Culham Science Centre, Abingdon, United Kingdom
| | - C Perez Von Thun
- EUROfusion Programme Management Unit, Culham Science Centre, Abingdon, United Kingdom
| | - D Marocco
- Unità Tecnica Fusione-ENEA C. R. Frascati, Via E. Fermi 45, Frascati, 00044 Roma, Italy
| | - M Tardocchi
- IFP-CNR, Via R. Cozzi 53, 20125 Milano, Italy
| | - F Belli
- Unità Tecnica Fusione-ENEA C. R. Frascati, Via E. Fermi 45, Frascati, 00044 Roma, Italy
| | | | - A Silva
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - S Soare
- The National Institute for Cryogenics and Isotopic Technology, Ramnicu Valcea, Romania
| | - T Craciunescu
- The National Institute for Laser, Plasma and Radiation Physics, Magurele, Bucharest, Romania
| | - M Santala
- Aalto University, P.O. Box 14100, FIN-00076 Aalto, Finland
| | - P Blanchard
- Ecole Polytechnique Fédérale de Lausanne (EPFL), CRPP, CH-1015 Lausanne, Switzerland
| | - I Balboa
- CCFE, Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom
| | - N Hawkes
- CCFE, Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom
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14
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Nocente M, Rigamonti D, Perseo V, Tardocchi M, Boltruczyk G, Broslawski A, Cremona A, Croci G, Gosk M, Kiptily V, Korolczuk S, Mazzocco M, Muraro A, Strano E, Zychor I, Gorini G. Gamma-ray spectroscopy at MHz counting rates with a compact LaBr 3 detector and silicon photomultipliers for fusion plasma applications. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2016; 87:11E714. [PMID: 27910625 DOI: 10.1063/1.4961073] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Gamma-ray spectroscopy measurements at MHz counting rates have been carried out, for the first time, with a compact spectrometer based on a LaBr3 scintillator and silicon photomultipliers. The instrument, which is also insensitive to magnetic fields, has been developed in view of the upgrade of the gamma-ray camera diagnostic for α particle measurements in deuterium-tritium plasmas of the Joint European Torus. Spectra were measured up to 2.9 MHz with a projected energy resolution of 3%-4% in the 3-5 MeV range, of interest for fast ion physics studies in fusion plasmas. The results reported here pave the way to first time measurements of the confined α particle profile in high power plasmas of the next deuterium-tritium campaign at the Joint European Torus.
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Affiliation(s)
- M Nocente
- EUROfusion Consortium, JET, Culham Science Centre, Abingdon, United Kingdom
| | - D Rigamonti
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano, Italy
| | - V Perseo
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano, Italy
| | - M Tardocchi
- Istituto di Fisica del Plasma "Piero Caldirola," Milano, Italy
| | - G Boltruczyk
- Narodowe Centrum Badan Jadrowych (NCBJ), Otwock-Swierk, Poland
| | - A Broslawski
- Narodowe Centrum Badan Jadrowych (NCBJ), Otwock-Swierk, Poland
| | - A Cremona
- Istituto di Fisica del Plasma "Piero Caldirola," Milano, Italy
| | - G Croci
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano, Italy
| | - M Gosk
- Narodowe Centrum Badan Jadrowych (NCBJ), Otwock-Swierk, Poland
| | - V Kiptily
- Culham Centre for Fusion Energy, Culham, United Kingdom
| | - S Korolczuk
- Narodowe Centrum Badan Jadrowych (NCBJ), Otwock-Swierk, Poland
| | - M Mazzocco
- Dipartimento di Fisica, Istituto Nazionale di Fisica Nucleare, Padova, Italy
| | - A Muraro
- Istituto di Fisica del Plasma "Piero Caldirola," Milano, Italy
| | - E Strano
- Dipartimento di Fisica, Istituto Nazionale di Fisica Nucleare, Padova, Italy
| | - I Zychor
- Narodowe Centrum Badan Jadrowych (NCBJ), Otwock-Swierk, Poland
| | - G Gorini
- Dipartimento di Fisica, Università di Milano-Bicocca, Milano, Italy
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