Nukleonika (Sep 2017)

Characterization of some modern scintillators recommended for use on large fusion facilities in γ-ray spectroscopy and tomographic measurements of γ-emission profiles

  • Sibczynski Pawel,
  • Broslawski Andrzej,
  • Gojska Aneta,
  • Kiptily Vasili,
  • Korolczuk Stefan,
  • Kwiatkowski Roch,
  • Mianowski Slawomir,
  • Moszyński Marek,
  • Rzadkiewicz Jacek,
  • Swiderski Lukasz,
  • Szydlowski Adam,
  • Zychor Izabella

DOI
https://doi.org/10.1515/nuka-2017-0032
Journal volume & issue
Vol. 62, no. 3
pp. 223 – 228

Abstract

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LaBr3:Ce,CeBr3 and GAGG:Ce scintillators were investigated and the determined characteristics were compared with those obtained for the well-known and widely used CsI:Tl and NaI:Tl crystals. All the detectors were of the same size of 10 × 10 × 5 mm3. The aim of this test study was to single out scintillation detectors most suitable for γ-ray spectrometry and γ-ray emission radial profile measurements in high-temperature plasma experiments. Decay time, energy resolution, non-proportionality and full energy peak detection efficiency ere measured for γ-ray energies up to 1770 keV. Due to their good energy resolution, short decay time and high detection efficiency for MeV gamma rays, LaBr3:Ce and CeBr3 scintillators are proposed as the best candidates for use especially under conditions of high count rates, which are expected in the forthcoming DT experiments.

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