Detectors on base of scintillation structures for registration of volumetric activities of gaseous and liquid media gamma radiation

International Conference on Particle Physics and Astrophysics

Kadilin, V.V.^1 ; Yurov, V.N.^1 ; Ryabeva, E.V.^1 ; Samossadny, V.T.^1 ; Lupar, E.E.^1 ; Trofimov, Yu A.^1 ; Kolesnikov, S.V.^1 ; Chebishev, S.B.^1 ; Nebolsin, V.O.^1

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

115409, Russia^1

关键词: Experimental verification;    Fast neutrons;    Gamma-ray detection;    Liquid media;    Liquid medium;    Measurement range;    Physical process;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/675/4/042010/pdf
DOI  :  10.1088/1742-6596/675/4/042010

来源: IOP

【 摘 要 】

The main aim of this research is the development and prototyping of the ionizing radiation detectors for the diagnosis of the physical processes used for monitoring the radiation situation at the thermal or fast neutrons reactors. In this article we present the experimental verification of applicability of the scintillation detectors based on LaBr3(Ce) and YAlO3(Ce). The experimental studies of the gamma-ray detection with several designs of the crystal scintillation detectors in gas and liquid are considered. It was shown that the measurement range in the liquid medium at the duration of one measurement of 100 seconds for137Cs equals from 3.79•102Bq/l to 1.08•108Bq/l for detector prototype based on YAlO3(Ce).