2021•NEWS OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTANRequires access
EFFICIENCY OF REGISTRATION OF LOW ENERGY NEUTRONS BY NEUTRON DETECTORS BASED ON GAS DISCHARGE 3He COUNTERS
L. I. Vildanova, O.A. Novolodskaya, T. Kh. Sadykov, D.O. Kantarbayeva
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Abstract
When analyzing the results obtained in measurements on neutron detectors with a low energy threshold, it is necessary to know the dependence of the neutron detection efficiency on their kinetic energy in information channels of various types, both for "open" neutron counters, and for counters surrounded by a moderator. Having a physical model of particle interactions based on the Geant4 package, it is possible to calculate the detection efficiency for various types of detectors, which are used in experiments conducted at the Tien Shan high-mountain station related to the registration of a neutron flux. The paper presents several simulation models developed for neutron detectors.