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A new tangential gamma-ray spectrometer for fast ion measurements in deuterium and deuterium-tritium plasmas of the Joint European Torus

  • M. Nocente
  • , T. Craciunescu
  • , G. Gorini
  • , V. Kiptily
  • , M. Tardocchi
  • , V. Braic
  • , M. Curuia
  • , A. Dal Molin
  • , J. Figueiredo
  • , L. Giacomelli
  • , M. Iliasova
  • , Y. Kazakov
  • , E. Khilkevitch
  • , G. Marcer
  • , E. Panontin
  • , D. Rigamonti
  • , M. Salewski
  • , A. Shevelev
  • , S. Soare
  • , V. Zoita
  • I. Zychor
  • University of Milano-Bicocca
  • CNR
  • Institute of Atomic Physics, Bucharest
  • Culham Centre for Fusion Energy
  • Instituto Superior Técnico
  • EUROfusion Consortium
  • Ioffe Physical-Technical Institute of the Russian Academy of Sciences
  • Technical University of Denmark
  • Narodowe Centrum Badań Jadrowych
  • EFDA-JET

Onderzoeksoutput: Bijdrage aan een tijdschriftArtikelpeer review

23 Citaten (Scopus)

Samenvatting

A new tangential gamma-ray spectrometer has been developed for fast ion measurements in deuterium and deuterium-tritium plasmas of the Joint European Torus (JET). The instrument is based on a LaBr3 crystal with a photo-multiplier tube and replaces a pre-existing bismuth germanate detector, providing enhanced energy resolution and a counting rate capability in the MHz range. The line of sight is equipped with a LiH attenuator, which reduces the background due to 14 MeV neutron interactions with the crystal by more than two orders of magnitude and enables the observation of gamma-ray emission from confined α particles in JET deuterium-tritium plasmas. Thanks to its tangential line of sight, the detector can distinguish co- and counter-passing ions. The performance of the instrument is demonstrated through the results of recent JET fast ion experiments in deuterium plasmas.

Originele taal-2Engels
Artikelnummer043537
TijdschriftReview of Scientific Instruments
Volume92
Nummer van het tijdschrift4
DOI's
StatusGepubliceerd - 1 apr. 2021

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