A numerical model of a coated capillary-plate thermal neutron collimator

TIAN Yang; YANG Yi-Gang; LI Yu-Lan; LI Yuan-Jing

doi:10.1088/1674-1137/36/5/010

Chinese Physics C> 2012, Vol. 36> Issue(5) : 438-442 DOI: 10.1088/1674-1137/36/5/010

A numerical model of a coated capillary-plate thermal neutron collimator

Abstract
HTML
Reference
Related

PDF

Abstract：
A novel thermal neutron collimator was successfully fabricated by coating the inner surface of the capillary plate (CP) with gadolinium oxide using atomic layer deposition (ALD) technology. This CP-based collimator is efficient and compact. A numerical model is presented in the paper to estimate the main performance characteristics of the collimator and to optimize the design for specific applications. According to the results of the calculation based on currently available CPs, the FWHM of the collimator's rocking curve can be smaller than 0.15° while suppressing more than 99.9% of the incident thermal neutrons on the double wings of the curve. Such a coated CP is as thin as 1.25 mm or even thinner, providing high angular resolution with good transmission in a very limited space.

References

[1]

Hewat A W, Bailey I. Nucl. Instrum. Methods, 1976, 137:4632 Cussen L D et al. Nucl. Instrum. Methods A, 2001, 471:3923 Tresmin A S, Feller W B. Nucl. Instrum. Methods A, 2006,556: 5624 LU Nian-Hua. Research on Several Key Issues of Thermal Neutron Sensitive Microchannel Plate (M. S. Thesis). Bei- jing: Tsinghua University, 2011 (in Chinese)5 Shikhaliev P M et al. IEEE Trans. Nucl. Sci., 2005, 52:12606 Beetz C P et al. Nucl. Instrum. Methods A, 2000, 442: 4507 Elam J W et al. J. Nanomater., 2006, 2006: 2

[1]	Zhao-Ming Zeng , Hui Gong , Jian-Min Li , Qian Yue , Zhi Zeng , Jian-Ping Cheng . Design of the thermal neutron detection system for CJPL-II. Chinese Physics C, 2017, 41(5): 056002. doi: 10.1088/1674-1137/41/5/056002
[2]	Cui Zhu , Xia Zhou , Na Wang . Rotational energy conversion and thermal evolution of neutron stars. Chinese Physics C, 2017, 41(12): 125104. doi: 10.1088/1674-1137/41/12/125104
[3]	Ke Li , Jian-Rong Zhou , Xiao-Dong Wang , Tao Xiong , Ying Zhang , Yu-Guang Xie , Liang Zhou , Hong Xu , Gui-An Yang , Yan-Feng Wang , Yan Wang , Jin-Jie Wu , Zhi-Jia Sun , Bi-Tao Hu . Study of a nTHGEM-based thermal neutron detector. Chinese Physics C, 2016, 40(7): 076002. doi: 10.1088/1674-1137/40/7/076002
[4]	Yi-ming Wang , Yang Tian , Yi-gang Yang , Ren Liu , Jing-sheng Pan , Xue-wu Wang , Zhi Zhang . Detection efficiency evaluation for a large area neutron sensitive microchannel plate detector. Chinese Physics C, 2016, 40(9): 096004. doi: 10.1088/1674-1137/40/9/096004
[5]	Mei-Qi Song , Qing-Min Zhang , Yu-Hang Guo , Kai Li , Hai-Xiao Deng . Numerical modeling of thermal loading of diamond crystal in X-ray FEL oscillators. Chinese Physics C, 2016, 40(4): 048101. doi: 10.1088/1674-1137/40/4/048101
[6]	Jian-Bo Gao , Yun-Tao Liu , Dong-Feng Chen . A new method for analyzing the collimation angleof a neutron Soller collimator. Chinese Physics C, 2016, 40(1): 016003. doi: 10.1088/1674-1137/40/1/016003
[7]	WANG Jie , XU Yan-Hui , ZHANG Bo , WEI Wei , FAN Le , PEI Xiang-Tao , HONG Yuan-Zhi , WANG Yong . Experimental study on TiN coated racetrack-type ceramic pipe. Chinese Physics C, 2015, 39(11): 117005. doi: 10.1088/1674-1137/39/11/117005
[8]	ZHENG Na , XU Hai-Bo . Transmission calculation by empirical numerical model and Monte Carlo simulation in high energy proton radiography of thick objects. Chinese Physics C, 2015, 39(10): 108201. doi: 10.1088/1674-1137/39/10/108201
[9]	ZENG Li-Na , WANG Qiang , SONG Ling-Li , ZHENG Chun . Influence of thermal and resonance neutron on fast neutron flux measurement by ²³⁹Pu fission chamber. Chinese Physics C, 2015, 39(1): 016001. doi: 10.1088/1674-1137/39/1/016001
[10]	YANG Lei , ZHOU Jian-Rong , SUN Zhi-Jia , ZHANG Ying , HUANG Chao-Qiang , SUN Guang-Ai , WANG Yan-Feng , YANG Gui-An , XU Hong , XIE Yu-Guang , CHEN Yuan-Bo . Experimental research on a THGEM-based thermal neutron detector. Chinese Physics C, 2015, 39(5): 056002. doi: 10.1088/1674-1137/39/5/056002
[11]	ZHANG Jin-Zhao , TUO Xian-Guo . A Monte Carlo simulation and setup optimization of output efficiency to PGNAA thermal neutron using ²⁵²Cf neutrons. Chinese Physics C, 2014, 38(7): 078201. doi: 10.1088/1674-1137/38/7/078201
[12]	YANG Xiao-Peng , YU Bo-Xiang , LI Yi-Guo , PENG Dan , LU Jin , ZHANG Gao-Long , ZHAO Hang , ZHANG Ai-Wu , LI Chun-Yang , LIU Wan-Jin , HU Tao , . Neutron collimator design of neutron radiography basedon the BNCT facility. Chinese Physics C, 2014, 38(2): 028201. doi: 10.1088/1674-1137/38/2/028201
[13]	TIAN Yang , YANG Yi-Gang , PAN Jing-Sheng , LI Yu-Lan , LI Yuan-Jing . High efficiency event-counting thermal neutron imagingusing a Gd-doped micro-channel plate. Chinese Physics C, 2014, 38(8): 086003. doi: 10.1088/1674-1137/38/8/086003
[14]	XU Ming , TANG Zhi-Cheng , CHEN Guo-Ming , TAO Jun-Quan . Comparison of thermal neutron detection efficiency of ⁶Li scintillation glass and ³He gas proportional tube. Chinese Physics C, 2013, 37(10): 106001. doi: 10.1088/1674-1137/37/10/106001
[15]	LIU Ye , MA Xin-Hua , ZHAO Jing . Thermal neutron flux produced by EAS at various altitudes. Chinese Physics C, 2013, 37(1): 015001. doi: 10.1088/1674-1137/37/1/015001
[16]	ZOU Yi-Qing , WANG Na , KANG Ling , QU Hua-Min , HE Zhe-Xi , YU Jie-Bing . Thermal analysis and cooling structure design of the primary collimator in CSNS/RCS. Chinese Physics C, 2013, 37(5): 057004. doi: 10.1088/1674-1137/37/5/057004
[17]	ZHOU Jian-Rong , SUN Zhi-Jia , LIU Ben , WANG Yan-Feng , YANG Gui-An , ZHOU Liang , XU Hong , DONG Jing , YANG Lei , LI Yi . Neutron beam monitor based on a boron-coated GEM. Chinese Physics C, 2011, 35(7): 668-674. doi: 10.1088/1674-1137/35/7/012
[18]	QIAN Sen , WANG Yi-Fang , ZHANG Jia-Wen , LI Jin , CHEN Yuan-Bo , CHEN Jin , WANG Zhi-Gang , MA Lie-Hua . Study of the RPC-Gd as thermal neutron detector. Chinese Physics C, 2009, 33(9): 769-773. doi: 10.1088/1674-1137/33/9/011
[19]	CHU Yan-Yun , CHEN Shuang , REN Zhong-Zhou . Three-body model for neutron-halo nuclei. Chinese Physics C, 2008, 32(12): 972-975. doi: 10.1088/1674-1137/32/12/006
[20]	Zhang Changhua , Gu Jinnan . Shell Model Calculation for Light Neutron-Rich Nuclei. Chinese Physics C, 1996, 20(S2): 165-170.

Access

Get Citation

TIAN Yang, YANG Yi-Gang, LI Yu-Lan and LI Yuan-Jing. A numerical model of a coated capillary-plate thermal neutron collimator[J]. Chinese Physics C, 2012, 36(5): 438-442. doi: 10.1088/1674-1137/36/5/010

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2011-08-05
Revised: 2011-08-30

Article Metric

Article Views(2002)
PDF Downloads(295)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

A numerical model of a coated capillary-plate thermal neutron collimator

Received Date: 2011-08-05

Accepted Date: 2011-08-30

Available Online: 2012-05-05

Abstract: A novel thermal neutron collimator was successfully fabricated by coating the inner surface of the capillary plate (CP) with gadolinium oxide using atomic layer deposition (ALD) technology. This CP-based collimator is efficient and compact. A numerical model is presented in the paper to estimate the main performance characteristics of the collimator and to optimize the design for specific applications. According to the results of the calculation based on currently available CPs, the FWHM of the collimator's rocking curve can be smaller than 0.15° while suppressing more than 99.9% of the incident thermal neutrons on the double wings of the curve. Such a coated CP is as thin as 1.25 mm or even thinner, providing high angular resolution with good transmission in a very limited space.

HTML

Reference (1)

A numerical model of a coated capillary-plate thermal neutron collimator

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

A numerical model of a coated capillary-plate thermal neutron collimator

HTML

目录