针对位置灵敏涂硼稻草管中子探测器的读出电子学设计

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清华大学辅仁网/2017-07-07

于昊¹, 宫辉¹, 王永强², 王学武¹, 李荐民¹, 李元景¹, 康克军¹

1. 清华大学工程物理系, 粒子技术与辐射成像教育部重点实验室, 北京 100084;
2. 同方威视技术股份有限公司, 北京 100084

Readout electronics for position sensitive boron coated straw detector

YU Hao¹, GONG Hui¹, WANG Yongqiang², WANG Xuewu¹, LI Jianmin¹, LI Yuanjing¹, KANG Kejun¹

1. Key Laboratory of Particle and Radiation Imaging of the Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing 100084, China;
2. NUCTECH Company Limited, Beijing 100084, China

摘要:

输出: BibTeX | EndNote (RIS)

摘要涂硼稻草管中子探测器将替代³He管探测器应用在清华大学微型脉冲强子源(CPHS)小角散射谱仪上。该文设计了针对该新型位置灵敏中子探测器的读出电子学系统, 通过分析探测器和前端电路的噪声, 得出了位置分辨率的估算方法, 并结合根据探测器输出信号特征优化了电路参数。对1.0 m长的涂硼稻草管及其读出电子学系统分别进行了电荷注入测试和中子束流测试, 位置分辨率的测试结果分别为2.7 mm和4.5 mm。实验结果表明:涂硼稻草管及其读出电子学系统的性能可以满足CPHS小角散射谱仪对中子位置测量的需求。

关键词 ：涂硼稻草管,读出电子学,位置灵敏,中子探测器

Abstract：Boron coated straw neutron detectors are being developed for use in the small-angle neutron scattering (SANS) instrument of the compact pulsed hadron source (CPHS) in Tsinghua University. This paper describes the readout electronics system for the position sensitive detector. The position resolution is estimated based on a noise analysis of the detector and the front end electronics. Then, the circuit parameters are optimized to improve the output signal characteristics. The position resolution of the detector and the readout electronics were evaluated using a charge injection test and a neutron beam test, with a position resolution of 2.7 mm in the charge injection test and 4.5 mm in the neutron beam test. The results that the detector and readout electronics meet the requirements for the neutron position measurement in the CPHS SANS instrument.

Key words：boron coated straw detector readout electronics position sensitivity neutron detector

收稿日期: 2014-11-25 出版日期: 2015-09-08

ZTFLH:

TL822

通讯作者:宫辉, 助理研究员。E-mail: gonghui@mail.tsinghua.edu.cnE-mail: gonghui@mail.tsinghua.edu.cn

引用本文:

于昊, 宫辉, 王永强, 王学武, 李荐民, 李元景, 康克军. 针对位置灵敏涂硼稻草管中子探测器的读出电子学设计[J]. 清华大学学报（自然科学版）, 2015, 55(6): 691-694.
YU Hao, GONG Hui, WANG Yongqiang, WANG Xuewu, LI Jianmin, LI Yuanjing, KANG Kejun. Readout electronics for position sensitive boron coated straw detector. Journal of Tsinghua University(Science and Technology), 2015, 55(6): 691-694.

链接本文:

http://jst.tsinghuajournals.com/CN/或 http://jst.tsinghuajournals.com/CN/Y2015/V55/I6/691

图表:

图1　读出电路结构框图

图2　前端电路的噪声等效电路

表1　不同滤波时间常数下和信号与差信号的等效噪声电荷

图3　5次测量叠加后的位置谱

图4　测量得到的位置与实际位置的线性关系

参考文献:

[1]	Dana A, Daniel M. The Helium-3 shortage: Supply, demand, and options for congress [Z/OL]. (2010-12-22). http://fas.org/sgp/crs/misc/R41419.pdf.
[2]	Lacy J L, Athanasiades A, Liang S, et al. Boron-coated straws as a replacement for 3He-based neutron detectors [J]. Nuclear Instruments and Methods in Physics Research Section A, 2011, 652: 359-363.
[3]	Nakamura T, Katagiri M, Toh K, et al. A position-sensitive tubular scintillator-based detector as an alternative to a 3He-gas-based detector for neutron-scattering instruments [J]. Nuclear Instruments and Methods in Physics Research Section A, 2014, 741: 42-46.
[4]	Richard T K, James H E, Luke E E, et al. Neutron detection alternatives to 3He for national security applications [J]. Nuclear Instruments and Methods in Physics Research Section A, 2010, 623: 1035-1045.
[5]	Lacy J L, Athanasiades A, Shehad N N, et al. Novel neutron detector for high rate imaging applications [C]//IEEE Nuclear Science Symposium Conference Record. Norfolk, USA: IEEE, 2002: 392-396.
[6]	CHEN Cai, YANG Yigang, ZHU Shounuo, et al. Study of boron-lined straw-tube detector array for neutron scattering measurement [C]//IEEE Nuclear Science Symposium Conference Record. Anaheim, USA: IEEE, 2012: 176-179.
[7]	HUANG Tuchen, GONG Hui, SHAO Beibei, et al. A prototype of the linear position-sensitive detectors for CPHS [J]. Physics Procedia, 2012, 26: 31-35.
[8]	CHEN Cai, GONG Hui, YANG Yigang, et al. Realization and test of position sensitive boron coated straw-tube [C]//IEEE Nuclear Science Symposium Conference Record. Seoul, Korea: IEEE, 2013: 1-4.
[9]	Esch P V, Gahl T, Guérard B. Design criteria for electronics for resistive charge division in thermal neutron detection [J]. Nuclear Instruments and Methods in Physics Research Section A, 2004, 526: 493-500.
[10]	Radeka V, Rehak P. Charge division mechanism on resistive electrode in position-sensitive detectors [J]. IEEE Transactions on Nuclear Science, 1979, 26(1): 225-238.
[11]	黄土琛, 宫辉, 邵贝贝. 位置灵敏3He管中子探测器前端电子学设计 [J]. 清华大学学报:自然科学版, 2012, 52(12):1731-1735.HUANG Tuchen, GONG Hui, SHAO Beibei. Design of the front-end electronics for linear position-sensitive 3He neutron detector [J]. Journal of Tsinghua University: Science and Technology, 2012, 52(12): 1731-1735. (in Chinese)
[12]	Radeka V. Signal, noise and resolution in position-sensitive detectors [J]. IEEE Transactions on Nuclear Science, 1974, 21(1): 51-64.
[13]	HUANG Tuchen, GONG Hui, SHAO Beibei, et al. Design of a new time-of-flight small-angle neutron scattering instrument at CPHS [J]. Physics Procedia, 2012, 26: 44-48.

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