Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5492516 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2018 | 25 Pages |
Abstract
A radiation counter with a needle anode has been developed for detection of thermal neutrons; the diameter of sensitive area is 5 mm and the filling gas is the mixture of 3He and Q gas (4He + 1%isobutane) with pressures of 0.3-1.0 MPa. An interesting response has been found in the counter operation for thermal neutrons; there is no proportional-counter region, while it normally works in both ionization-chamber and GM-counter regions. The γ-ray background, which is one of difficulties in the neutron detection, can be effectively removed by the lack of proportional-counter region. In this paper, the performance of the needle counter is described in detail.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Yasuhito Isozumi, Mitsuo Tosaki,