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

Nukleonika

Kiptily Vasili¹  Mianowski Slawomir²  Sibczynski Pawel²  Korolczuk Stefan²  Szydlowski Adam²  Broslawski Andrzej²  Zychor Izabella²  Moszyński Marek²  Gojska Aneta²  Swiderski Lukasz²  Rzadkiewicz Jacek²  Kwiatkowski Roch² 

[1] Culham Centre for Fusion Energy (CCFE), Culham Science Centre, OX14 3DB, Abingdon, United Kingdom of Great Britain and Northern Ireland;National Centre for Nuclear Research (NCBJ), 7 Andrzeja Sołtana Str., 05-400 Otwock/Swierk, Poland;

关键词: gamma spectrometry;    scintillators;    decay time;    non-proportionality;    energy resolution;    detection efficiency;    fusion plasma;   

DOI  :  10.1515/nuka-2017-0032

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown