Experimental determination of gamma-ray discrimination in pillar-structured thermal neutron detectors under high gamma-ray flux
In this paper, we demonstrate a detector that has a high neutron-to-gamma discrimination of 8.5×105 with a high thermal neutron detection efficiency of 39% when exposed to a high gamma-ray field of 109 photons/cm2s. The detector is based on a silicon pillar structure filled with a neutron converter...
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| Veröffentlicht in: | Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2015-11, Vol.799 (C), p.203-206 |
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| container_title | Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment |
| container_volume | 799 |
| creator | Shao, Qinghui Conway, Adam M. Voss, Lars F. Radev, Radoslav P. Nikolić, Rebecca J. Dar, Mushtaq A. Cheung, Chin L. |
| description | In this paper, we demonstrate a detector that has a high neutron-to-gamma discrimination of 8.5×105 with a high thermal neutron detection efficiency of 39% when exposed to a high gamma-ray field of 109 photons/cm2s. The detector is based on a silicon pillar structure filled with a neutron converter material (10B) designed to have high thermal neutron detection efficiency. The pillar dimensions are 50µm pillar height, 2µm pillar diameter and 2µm spacing between adjacent pillars. |
| doi_str_mv | 10.1016/j.nima.2015.07.045 |
| format | Article |
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| identifier | ISSN: 0168-9002 |
| ispartof | Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 2015-11, Vol.799 (C), p.203-206 |
| issn | 0168-9002 1872-9576 |
| language | eng |
| recordid | cdi_osti_scitechconnect_1237544 |
| source | Access via ScienceDirect (Elsevier) |
| subjects | Boron Gamma-ray discrimination GENERAL STUDIES OF NUCLEAR REACTORS Silicon pillar Thermal neutron detector |
| title | Experimental determination of gamma-ray discrimination in pillar-structured thermal neutron detectors under high gamma-ray flux |
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