Digital pulse shape discrimination methods for n-γ separation in an EJ-301 liquid scintillation detector

WAN Bo; ZHANG Xue-Ying; CHEN Liang; GE Hong-Lin; MA Fei; ZHANG Hong-Bin; JU Yong-Qin; ZHANG Yan-Bin; LI Yan-Yan; XU Xiao-Wei

doi:10.1088/1674-1137/39/11/116201

Chinese Physics C> 2015, Vol. 39> Issue(11) : 116201 DOI: 10.1088/1674-1137/39/11/116201

Digital pulse shape discrimination methods for n-γ separation in an EJ-301 liquid scintillation detector

WAN Bo ^1,2 ,
ZHANG Xue-Ying ^1,, ,
CHEN Liang ¹ ,
GE Hong-Lin ¹ ,
MA Fei ¹ ,
ZHANG Hong-Bin ¹ ,
JU Yong-Qin ¹ ,
ZHANG Yan-Bin ¹ ,
LI Yan-Yan ^1,2 ,
XU Xiao-Wei ^1,2

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Abstract：
A digital pulse shape discrimination system based on a programmable module NI-5772 has been established and tested with an EJ-301 liquid scintillation detector. The module was operated by running programs developed in LabVIEW, with a sampling frequency up to 1.6 GS/s. Standard gamma sources ²²Na, ¹³⁷Cs and ⁶⁰Co were used to calibrate the EJ-301 liquid scintillation detector, and the gamma response function was obtained. Digital algorithms for the charge comparison method and zero-crossing method have been developed. The experimental results show that both digital signal processing (DSP) algorithms can discriminate neutrons from γ-rays. Moreover, the zero-crossing method shows better n-γ discrimination at 80 keVee and lower, whereas the charge comparison method gives better results at higher thresholds. In addition, the figure-of-merit (FOM) for detectors of two different dimensions were extracted at 9 energy thresholds, and it was found that the smaller detector presented better n-γ separation for fission neutrons.
- EJ-301 liquid scintillation detector ,
- digital signal processing ,
- charge comparison method ,
- zero-crossing method

References

[1]	Bowman C D, Arthur E D, Lisowski P W et al. Nucl. Instrum. Methods Phys. Res. A, 1992, 320}: 336-367
[2]	ZHAN W L, XU H S. Bulletin of Chinese Academy of Sciences, 2012, 03: 375-381 (in Chinese)
[3]	Krivopustov M I, Chultem D, Adam J et al. Kerntechnik, 2003, 68}: 48
[4]	CHEN Y H, LEI J R, ZHANG X D et al. Chinese Physics C, 2013, 37}(4): 046202-1
[5]	Pai S et al. Nucl. Instrum. Methods A, 1989, 278}: 749
[6]	Kaschuck Y, Esposito B. Nucl. Instrum. Methods A, 2005, 551}: 420
[7]	Wolski D, Moszynski M, Ludziejewski T et al. Nucl. Instrum. Methods A, 1995, 360: 584
[8]	M. Nakhostin, P. M. Walker. Nucl. Instrum. Methods A, 2010, 621}: 498-501
[9]	R. Aryaeinejad, Edward Reber, and Dave Spencer. IEEE Trans. Nucl. Sci, 2002, 49}(4): 1909-1913
[10]	Dietze G. IEEE Trans. Nucl. Sci, 1979, NS-26: 398-402
[11]	Dietze G, Klein H. Nucl. Instrum. Methods A, 1982, 193}: 549
[12]	ZHANG S Y L T, CHEN Z Q et al. Chinese Physics C, 2013, 37}(12): 126003
[13]	HUANG H X, RUAN X C et al. Chinese Physics C, 2009, 33}(8): 677-681

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[13]	TIAN Kai , CAO Zhou , XUE Yu-Xiong , YANG Shi-Yu . Comparison study of the charge density distribution induced by heavy ions and pulsed lasers in silicon. Chinese Physics C, 2010, 34(1): 148-151. doi: 10.1088/1674-1137/34/1/028
[14]	DAI Qiu-Sheng , ZHAO Cui-Lan , ZHANG Hua-Lin , QI Yu-Jin . Investigation of high resolution compact gamma camera module based on a continuous scintillation crystal using a novel charge division readout method. Chinese Physics C, 2010, 34(8): 1148-1152. doi: 10.1088/1674-1137/34/8/021
[15]	ZENG Zhuo-Quan , SHEN Peng-Nian , DING Yi-Bing . An improved variational method. Chinese Physics C, 2009, 33(3): 191-196. doi: 10.1088/1674-1137/33/3/006
[16]	ZHAO Xiao-Song , LV Jian-Qin . Comparison of the PIC model and the Lie algebraic method in the simulation of intense continuous beam transport. Chinese Physics C, 2009, 33(S2): 125-127. doi: 10.1088/1674-1137/33/S2/032
[17]	YOU Zheng-Yun , LIANG Yu-Tie , MAO Ya-Jun . A method for detector description exchange among ROOT GEANT4 and GEANT3. Chinese Physics C, 2008, 32(7): 572-575. doi: 10.1088/1674-1137/32/7/012
[18]	Chen Yu , Wang Zijing , Mao Zepu , Deng Bingkun , Li Shichang , Li Jin , Li Haibo , Zhang Zhongyun , Hu Tao , Xia Xiaomi , Cao Guilu , Lai Yuanfen . Charge Comparison Method Used to Discriminate Photons and Neutrons in Liquid Scintillators. Chinese Physics C, 1999, 23(7): 616-621.
[19]	Wang Jinchuan , Zhan Wenlong , Guo Zhongyan , Zhou Jianqun , Xi Hongfei , Luo Yongfeng , Zhao Youxiong , Lei Huaihong , Liu Guanhua . Experimental Simulation and Theoretical Analysis of the Zero-Crossing Timing Method. Chinese Physics C, 1995, 19(6): 489-493.
[20]	Zhang Tianbao , Wang Shuying , Wang Haidong , Shen Zhiqi , Meng Bonian . Precise Measurement of Gamma Ray Energies with HPGe Spectrometer by Slithering Comparison Method. Chinese Physics C, 1993, 17(S1): 25-31.

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WAN Bo, ZHANG Xue-Ying, CHEN Liang, GE Hong-Lin, MA Fei, ZHANG Hong-Bin, JU Yong-Qin, ZHANG Yan-Bin, LI Yan-Yan and XU Xiao-Wei. Digital pulse shape discrimination methods for n-γ separation in an EJ-301 liquid scintillation detector[J]. Chinese Physics C, 2015, 39(11): 116201. doi: 10.1088/1674-1137/39/11/116201

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Received: 2015-02-06

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Supported by National Natural Science Foundation of China (91226107, 11305229) and the Strategic Priority Research Program of the Chinese Academy of Sciences (XDA03030300)

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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

Digital pulse shape discrimination methods for n-γ separation in an EJ-301 liquid scintillation detector

Corresponding author: ZHANG Xue-Ying,

Received Date: 2015-02-06

Available Online: 2015-11-20

Fund Project: Supported by National Natural Science Foundation of China (91226107, 11305229) and the Strategic Priority Research Program of the Chinese Academy of Sciences (XDA03030300)

Abstract: A digital pulse shape discrimination system based on a programmable module NI-5772 has been established and tested with an EJ-301 liquid scintillation detector. The module was operated by running programs developed in LabVIEW, with a sampling frequency up to 1.6 GS/s. Standard gamma sources ²²Na, ¹³⁷Cs and ⁶⁰Co were used to calibrate the EJ-301 liquid scintillation detector, and the gamma response function was obtained. Digital algorithms for the charge comparison method and zero-crossing method have been developed. The experimental results show that both digital signal processing (DSP) algorithms can discriminate neutrons from γ-rays. Moreover, the zero-crossing method shows better n-γ discrimination at 80 keVee and lower, whereas the charge comparison method gives better results at higher thresholds. In addition, the figure-of-merit (FOM) for detectors of two different dimensions were extracted at 9 energy thresholds, and it was found that the smaller detector presented better n-γ separation for fission neutrons.

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Digital pulse shape discrimination methods for n-γ separation in an EJ-301 liquid scintillation detector

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