Measurement of 252Cf Fast Ionization Chamber Fission Neutron and γ Ray TOF Spectrum
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摘要: 介绍了252Cf快响应电离室裂变中子、γ飞行时间谱的测量系统的组成及工作原理,并给出了测量结果。这个系统测得的中子、γ飞行时间谱,其γ峰的半高宽达到0.9ns,可应用于探测系统的定时精度测量、n-γ分辨效果的检验等。Abstract: This paper introduces the measurement method and result for the 252Cf fast ionization chamber fission neutron and γ ray TOF spectrum, and describes the composition and working principle of the measurement system in detail. The neutron and γ ray TOF spectrum measured by this method, with the FWHM of its γ ray peak being 0.9ns at best, can be applied to timing precision measurement for nuclear detection system and to check the effect of n-γ discrimination.
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Key words:
- 252Cf /
- Ionization chamber /
- TOF spectrum /
- Timing precision
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