15-19 April 2018
Paradise Point Resort & Spa
America/Los_Angeles timezone

6.20 The upgraded JET Gamma-ray Camera based on high resolution/high count rate compact spectrometers

17 Apr 2018, 10:30
2h 1m
Paradise Point Resort & Spa

Paradise Point Resort & Spa

1404 Vacation Rd, San Diego, CA 92109

Speakers

Davide Rigamonti (Istituto di Fisica del Plasma “P. Caldirola”, CNR) Andrzej Broslawski (Narodowe Centrum Badań Jądrowych (NCBJ)) Ana Fernandes (Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa) Joao Figueiredo (EUROfusion Programme Management Unit, Culham Science Centre) Luca Giacomelli (Istituto di Fisica del Plasma “P. Caldirola”, CNR) Giuseppe Gorini (Dipartimento di Fisica “G. Occhialini”, Università degli Studi di Milano-Bicocca) Marcin Gosk (Narodowe Centrum Badań Jądrowych (NCBJ)) Garry Kaveney (Culham Centre for Fusion Energy) Vasili Kiptily (Culham Centre for Fusion Energy) Stefan Korolczuk (Narodowe Centrum Badań Jądrowych (NCBJ)) Andrea Murari (EUROfusion Programme Management Unit, Culham Science Centre) Massimo Nocente (Dipartimento di Fisica “G. Occhialini”, Università degli Studi di Milano-Bicocca) Rita Costa Pereira (Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa) Sergey Popovichev (Culham Centre for Fusion Energy) Arkadiusz Urban (Narodowe Centrum Badań Jądrowych (NCBJ)) Izabella Zychor (Narodowe Centrum Badań Jądrowych (NCBJ)) Marco Tardocchi (Istituto di Fisica del Plasma “P. Caldirola”, CNR) JET Contributors (Culham Centre for Fusion Energy)

Description

The JET gamma ray camera has been very recently upgraded within the EUROFUSION enhancement program by the Gamma-ray Camera Upgrade (GCU) project. Aim of the GCU project is to improve the spectroscopic properties of the existing gamma ray camera both in terms of energy resolution and high counting rate capability, in order to operate in the forthcoming high power D and DT campaign. In this work we describe the solutions developed to meet the target requirements (Energy resolution <5% at 1.1 MeV and counting rate capability >500 kHz) which will enable high energy resolution/high count rate gamma-ray spectroscopy measurements in the 19 detectors of the horizontal and vertical camera. In particular, it was necessary to design, develop and realize a new compact gamma ray spectrometer based on a LaBr3 scintillator crystal (25.4 x 16.9 mm2) coupled to a Silicon Photo-Multiplier. The expected enhanced performance of the upgraded JET gamma ray camera will be presented with an example of the first D plasma data collected in the JET 2018 C38 campaign.

Primary author

Davide Rigamonti (Istituto di Fisica del Plasma “P. Caldirola”, CNR)

Co-authors

Andrzej Broslawski (Narodowe Centrum Badań Jądrowych (NCBJ)) Ana Fernandes (Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa) Joao Figueiredo (EUROfusion Programme Management Unit, Culham Science Centre) Luca Giacomelli (Istituto di Fisica del Plasma “P. Caldirola”, CNR) Giuseppe Gorini (Dipartimento di Fisica “G. Occhialini”, Università degli Studi di Milano-Bicocca) Marcin Gosk (Narodowe Centrum Badań Jądrowych (NCBJ)) Garry Kaveney (Culham Centre for Fusion Energy) Vasili Kiptily (Culham Centre for Fusion Energy) Stefan Korolczuk (Narodowe Centrum Badań Jądrowych (NCBJ)) Andrea Murari (EUROfusion Programme Management Unit, Culham Science Centre) Massimo Nocente (Dipartimento di Fisica “G. Occhialini”, Università degli Studi di Milano-Bicocca) Rita Costa Pereira (Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa) Sergey Popovichev (Culham Centre for Fusion Energy) Arkadiusz Urban (Narodowe Centrum Badań Jądrowych (NCBJ)) Izabella Zychor (Narodowe Centrum Badań Jądrowych (NCBJ)) Marco Tardocchi (Istituto di Fisica del Plasma “P. Caldirola”, CNR) JET Contributors (Culham Centre for Fusion Energy)

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