A boron-lined proportional counter (BLPC) used in a mixed field of reactors

A boron-lined proportional counter (BLPC) used in a mixed field of reactors
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用于反应堆混合领域的硼衬正比计数器(BLPC)

DOI:
10.1088/1674-1137/36/5/009
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发表时间:
2012-05
期刊:
中国物理c
影响因子:
--
通讯作者:
马加一
马加一
中科院分区:
其他
文献类型:
--
作者:
陈国云;魏志勇;辛勇;雷升杰;黄福成;黄三玻;朱立;赵经武;马加一

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研制了一种硼衬正比计数管(BLPC),用于测量反应堆周围的混合场,其计数率极限接近多丝正比计数管。用活度为100 mCi的标准Am-Be中子源进行测量,结果表明:BLPC的工作电压为800 V,平台长度为100 V,斜率为13.2%/100 V,输出脉冲宽度为1.26 μs,上升时间为370 ns。当计数率为1.0×105 count/s时,BLPC的脉冲堆积概率为3.6%。在BLPC的脉冲高度谱中可以看到清晰的峰。实验结果表明,工作在脉冲模式下的BLPC可以作为反应堆源程探测器。
A boron-lined proportional counter (BLPC) with a count rate limit close to the multi-wire proportional counter was manufactured to measure the mixed field around reactors. After measurement with a standard Am-Be neutron source (activity: 100 mCi), the results show that the operating voltage of the BLPC is 800 V, the plateau length is 100 V and the slope is 13.2%/100 V. The width and rise time of the output pulse of the BLPC are 1.26 μs and 370 ns, respectively. When the BLPC works at a count rate of 1.0×105 count/s, the pulse pile-up probability of the BLPC is 3.6%. A clear peak can be seen in the pulse height spectrum of the BLPC. and the performances illustrate that a BLPC working in pulse mode can serve as a source range detector of reactors.
DOI: 10.1016/0029-554x(80)90757-0
发表时间: 1980-09
期刊: Nuclear Instruments and Methods
影响因子: --
作者:
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