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

CHEN Guo-Yun; WEI Zhi-Yong; XIN Yong; LEI Sheng-Jie; HUANG Fu-Cheng; HUANG San-Bo; ZHU Li; ZHAO Jing-Wu; MA Jia-Yi

doi:10.1088/1674-1137/36/5/009

Chinese Physics C> 2012, Vol. 36> Issue(5) : 434-437 DOI: 10.1088/1674-1137/36/5/009

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

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Abstract：
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.

References

[1]

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CHEN Guo-Yun, WEI Zhi-Yong, XIN Yong, LEI Sheng-Jie, HUANG Fu-Cheng, HUANG San-Bo, ZHU Li, ZHAO Jing-Wu and MA Jia-Yi. A boron-lined proportional counter (BLPC) used in a mixed field of reactors[J]. Chinese Physics C, 2012, 36(5): 434-437. doi: 10.1088/1674-1137/36/5/009

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Received: 2011-04-11
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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

Received Date: 2011-04-11

Accepted Date: 2011-12-02

Available Online: 2012-05-05

Abstract: 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.

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