Thermal neutrons registration by xenon gamma-ray detector

International Conference on Particle Physics and Astrophysics

Shustov, A.E.^1 ; Chernysheva, I.V.^1 ; Dmitrenko, V.V.^1 ; Dukhvalov, A.G.^1 ; Krivova, K.V.^1 ; Novikov, A.S.^1 ; Petrenko, D.V.^1 ; Vlasik, K.F.^1 ; Ulin, S.E.^1 ; Uteshev, Z.M.^1

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

115409, Russia^1

关键词: Gamma ray detector;    Gamma-ray line;    High pressure xenon;    Neutron capture;    Prompt neutrons;    Sensitive volume;    Thermal neutrons;    Xenon isotopes;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/675/4/042024/pdf
DOI  :  10.1088/1742-6596/675/4/042024

来源: IOP

【 摘 要 】

Experimental results of thermal neutrons detection by high pressure xenon gamma- ray spectrometers are presented. The study was performed with two devices with sensitive volumes of 0.2 and 2 litters filled with compressed mixture of xenon and hydrogen without neutron-capture additives. Spectra from Pu-Be neutron source were acquired using both detectors. Count rates of the most intensive prompt neutron-capture gamma-ray lines of xenon isotopes were calculated in order to estimate thermal neutrons efficiency registration for each spectrometer.