Pulse shape discrimination in helium-4 scintillation detectors
| Autor: | Kelly A. Jordan, Ryan P. Kelley, Andreas Enqvist |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
Nuclear and High Energy Physics Scintillation business.industry Astrophysics::High Energy Astrophysical Phenomena Detector Gamma ray 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Neutron temperature Particle detector Optics 0103 physical sciences Neutron detection Figure of merit Neutron 010306 general physics 0210 nano-technology business Instrumentation |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 830:44-52 |
| ISSN: | 0168-9002 |
| DOI: | 10.1016/j.nima.2016.05.065 |
| Popis: | Three algorithms were investigated for discriminating between neutrons and gamma rays in a pressurized 4 He gas fast neutron detector: charge comparison, weighted integration, and neutron-gamma model analysis (NGMA). For each algorithm, a comprehensive pulse shape discrimination study was conducted using time-of-flight measurements, receiver operator characteristic curves, figure of merit performance measures, and a comparison of performance between 252 Cf and PuBe mixed neutron/gamma sources. The NGMA method was found to have the best overall performance by both the figure of merit and the receiver operator characteristic curve. The results also illustrated the high gamma rejection efficiency of these detectors, which is desirable in a variety of neutron monitoring applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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