Abstract
This paper focuses on the search for the desired thickness of the 10B4C thin-film coating, as well as the macrostructuring of the aluminum foil substrate used as a cathode in the production of a multiwire gas detector of thermal neutrons. The impact of the 10B4C film thickness from 1.0 to 2.5 μm and of the 0.05 mm thick Λ-shaped macrostructured aluminum foil substrate with an angle at the Λ-vertex from 10 to 45 degrees, with a height from 0.5 to 4 mm and a distance between the Λ-structures from 0.1 to 0.8 relative units on the neutron registration efficiency 1.8Å, was investigated. Numerical modeling of the electrostatic field was carried out using the Elcut software package. The interaction of neutrons with the 10B4C thin-film coating was modeled using the Monte Carlo method in the Geant4 program. The optimal values of the geometrical parameters for the best neutron registration efficiency were determined.
Published Version
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