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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. Rev Sci Instrum 2021; 92:053529. [PMID: 34243238 DOI: 10.1063/5.0043776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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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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. Rev Sci Instrum 2018; 89:10I116. [PMID: 30399923 DOI: 10.1063/1.5038839] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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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Cazzaniga C, Sundén EA, Binda F, Croci G, Ericsson G, Giacomelli L, Gorini G, Griesmayer E, Grosso G, Kaveney G, Nocente M, Perelli Cippo E, Rebai M, Syme B, Tardocchi M. Single crystal diamond detector measurements of deuterium-deuterium and deuterium-tritium neutrons in Joint European Torus fusion plasmas. Rev Sci Instrum 2014; 85:043506. [PMID: 24784606 DOI: 10.1063/1.4870584] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
First simultaneous measurements of deuterium-deuterium (DD) and deuterium-tritium neutrons from deuterium plasmas using a Single crystal Diamond Detector are presented in this paper. The measurements were performed at JET with a dedicated electronic chain that combined high count rate capabilities and high energy resolution. The deposited energy spectrum from DD neutrons was successfully reproduced by means of Monte Carlo calculations of the detector response function and simulations of neutron emission from the plasma, including background contributions. The reported results are of relevance for the development of compact neutron detectors with spectroscopy capabilities for installation in camera systems of present and future high power fusion experiments.
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Affiliation(s)
- C Cazzaniga
- Department of Physics "G. Occhialini," University of Milano Bicocca, Piazza della Scienza 3, Milano, Italy
| | - E Andersson Sundén
- Department of Physics and Astronomy, EURATOM-VR Association, Uppsala University, Uppsala, Sweden
| | - F Binda
- Department of Physics and Astronomy, EURATOM-VR Association, Uppsala University, Uppsala, Sweden
| | - G Croci
- Istituto di Fisica del Plasma, Associazione EURATOM-ENEA-CNR, via Roberto Cozzi 53, Milano, Italy
| | - G Ericsson
- Department of Physics and Astronomy, EURATOM-VR Association, Uppsala University, Uppsala, Sweden
| | - L Giacomelli
- Department of Physics "G. Occhialini," University of Milano Bicocca, Piazza della Scienza 3, Milano, Italy
| | - G Gorini
- Department of Physics "G. Occhialini," University of Milano Bicocca, Piazza della Scienza 3, Milano, Italy
| | - E Griesmayer
- Atominstitut, Vienna University of Technology, Austria
| | - G Grosso
- Istituto di Fisica del Plasma, Associazione EURATOM-ENEA-CNR, via Roberto Cozzi 53, Milano, Italy
| | - G Kaveney
- Culham Centre for Fusion Energy, Culham OX143DB, United Kingdom
| | - M Nocente
- Department of Physics "G. Occhialini," University of Milano Bicocca, Piazza della Scienza 3, Milano, Italy
| | - E Perelli Cippo
- Istituto di Fisica del Plasma, Associazione EURATOM-ENEA-CNR, via Roberto Cozzi 53, Milano, Italy
| | - M Rebai
- Department of Physics "G. Occhialini," University of Milano Bicocca, Piazza della Scienza 3, Milano, Italy
| | - B Syme
- Culham Centre for Fusion Energy, Culham OX143DB, United Kingdom
| | - M Tardocchi
- Istituto di Fisica del Plasma, Associazione EURATOM-ENEA-CNR, via Roberto Cozzi 53, Milano, Italy
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Biewer TM, Belcher C, Hassall I, Hillis DL, Kaveney G, Scharpf D, Stamp MF, Stunell C, Zastrow KD. Implementation of an in-vessel calibration light source for JET. Rev Sci Instrum 2012; 83:10D505. [PMID: 23130789 DOI: 10.1063/1.4729502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
An in-vessel calibration light source (ICLS) has been implemented for remote use during extended shutdown periods of the Joint European Torus (JET). The ICLS facilitated the in situ calibration of optical diagnostics, which previously were performed when the diagnostics were removed from JET. Since the ICLS is used to calibrate diagnostics over the entire, exact optical path as used when plasma discharge data are measured, the ICLS calibration implicitly accounts for any vignetting losses in the JET vessel viewports in addition to the vacuum window transmission. At least ten diagnostic systems have benefited from the ICLS during the extended ITER-like wall shutdown of 2009-2011. Examples of the use of the ICLS in JET are given.
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Affiliation(s)
- T M Biewer
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
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