title: Gamma-ray spectroscopy at MHz counting rates with a compact LaBr3detector and silicon photomultipliers for fusion plasma applications.
abstract: Gamma-ray spectroscopy measurements at MHz counting rates have been carried out, for the first time, with a compact spectrometer based on a LaBr3scintillator 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.
authors.affiliation: EUROfusion Consortium, JET, Culham Science Centre, Abingdon, United Kingdom.
authors.forename: M
authors.initials: M
authors.lastname: Nocente
authors.affiliation: Dipartimento di Fisica, Università di Milano-Bicocca, Milano, Italy.
authors.forename: D
authors.initials: D
authors.lastname: Rigamonti
authors.affiliation: Dipartimento di Fisica, Università di Milano-Bicocca, Milano, Italy.
authors.forename: V
authors.initials: V
authors.lastname: Perseo
authors.affiliation: Istituto di Fisica del Plasma "Piero Caldirola," Milano, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Tardocchi
authors.affiliation: Narodowe Centrum Badan Jadrowych (NCBJ), Otwock-Swierk, Poland.
authors.forename: G
authors.initials: G
authors.lastname: Boltruczyk
authors.affiliation: Narodowe Centrum Badan Jadrowych (NCBJ), Otwock-Swierk, Poland.
authors.forename: A
authors.initials: A
authors.lastname: Broslawski
authors.affiliation: Istituto di Fisica del Plasma "Piero Caldirola," Milano, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Cremona
authors.affiliation: Dipartimento di Fisica, Università di Milano-Bicocca, Milano, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Croci
authors.affiliation: Narodowe Centrum Badan Jadrowych (NCBJ), Otwock-Swierk, Poland.
authors.forename: M
authors.initials: M
authors.lastname: Gosk
authors.affiliation: Culham Centre for Fusion Energy, Culham, United Kingdom.
authors.forename: V
authors.initials: V
authors.lastname: Kiptily
authors.affiliation: Narodowe Centrum Badan Jadrowych (NCBJ), Otwock-Swierk, Poland.
authors.forename: S
authors.initials: S
authors.lastname: Korolczuk
authors.affiliation: Dipartimento di Fisica, Istituto Nazionale di Fisica Nucleare, Padova, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Mazzocco
authors.affiliation: Istituto di Fisica del Plasma "Piero Caldirola," Milano, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Muraro
authors.affiliation: Dipartimento di Fisica, Istituto Nazionale di Fisica Nucleare, Padova, Italy.
authors.forename: E
authors.initials: E
authors.lastname: Strano
authors.affiliation: Narodowe Centrum Badan Jadrowych (NCBJ), Otwock-Swierk, Poland.
authors.forename: I
authors.initials: I
authors.lastname: Zychor
authors.affiliation: Dipartimento di Fisica, Università di Milano-Bicocca, Milano, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Gorini
authors.affiliation: EUROfusion Consortium, JET, Culham Science Centre, Abingdon, United Kingdom.