LaBr3(Ce) gamma-ray detector for neutron capture therapy

International Conference on Particle Physics and Astrophysics

Smirnova, M.^1 ; Shmanin, E.^1 ; Galavanov, A.^1 ; Shustov, A.^1 ; Ulin, S.^1 ; Vlasik, K.^1 ; Dmitrenko, V.^1 ; Novikov, A.^1 ; Orlov, A.^2 ; Petrenko, D.^1 ; Shmurak, S.^2 ; Uteshev, Z.^1

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe highway 31, Moscow

115409, Russia^1

Institute of Institute of Solid State Physics, Russian Academy of Sciences, 2 Academician Ossipyan str., Chernogolovka, Moscow District

142432, Russia^2

关键词: Energy resolutions;    Gamma ray detector;    Gamma spectrum;    Neutron capture therapy;    Photo multiplier tube;    Radiative capture;    Scintillation crystals;    Visual identification;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/675/4/042050/pdf
DOI  :  10.1088/1742-6596/675/4/042050

来源: IOP

【 摘 要 】

Results of developing of a gamma-ray detector based on LaBr3(Ce) scintillation crystal for neutron capture therapy are presented. An energy resolution of the detector measured by photomultiplier tube Hamamatsu R6233-100 is showed. It was 2.93% for gamma line 662 keV from a source137Cs. For radiative capture gamma line of isotope10B (478 keV) and annihilation line (511 keV) the values were 3.33 and 3.24% respectively. Data analysis of gamma spectra for an estimation of energy resolution threshold required for visual identification gamma lines 478 and 511 keV was made.