Wide range pulsed neutron detection technology based on BF3 proportional counters
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摘要: 介绍了一种基于BF3正比计数管的宽量程脉冲中子探测技术。该技术采用多通道、组合式的BF3管阵列中子探测器组，以适应产额变化范围较宽的脉冲中子测试场合，并同时兼顾测量下限。基于该技术研制了一套BF3阵列中子探测系统并应用于脉冲中子源的测试，实验结果表明，该系统的脉冲中子测量范围可达5个数量级(56~8106)，测量下限低、输出信号清晰，证明了该技术的可行性和有效性。Abstract: A wide range pulsed neutron detection technology based on BF3 proportional counters is introduced. In this technology, multi-channel and modular BF3 tube array neutron detectors are adopted to achieve a wide range of pulsed neutron test applications, and the lower limit of measurement is also taken into account. Based on this technology, a set of BF3 array neutron detection system was developed and applied to the testing of pulsed neutron source. The experimental results show that the pulsed neutron measurement range of the system can reach the range of 56 to 8106, the lower limit of measurement is low and the output signal is clear, indicating the feasibility and effectiveness of the technology.
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Key words:
- BF3 proportional counter /
- neutron yield /
- neutron detection
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