Corrections on energy spectrum and scatterings for fast neutron radiography at NECTAR facility

LIU Shu-Quan; cherl Thomas; LI Hang; ZOU Yu-Bin; LU Yuan-Rong; GUO Zhi-Yu

doi:10.1088/1674-1137/37/11/118201

Chinese Physics C> 2013, Vol. 37> Issue(11) : 118201 DOI: 10.1088/1674-1137/37/11/118201

Corrections on energy spectrum and scatterings for fast neutron radiography at NECTAR facility

Abstract
HTML
Reference
Related

PDF

Abstract：
Distortions caused by the neutron spectrum and scattered neutrons are major problems in fast neutron radiography and should be considered for improving the image quality. This paper puts emphasis on the removal of these image distortions and deviations for fast neutron radiography performed at the NECTAR facility of the research reactor FRM-Ⅱ in Technische Universität München (TUM),Germany. The NECTAR energy spectrum is analyzed and established to modify the influence caused by the neutron spectrum,and the Point Scattered Function (PScF) simulated by the Monte-Carlo program MCNPX is used to evaluate scattering effects from the object and improve image quality. Good analysis results prove the sound effects of the above two corrections.

[1]	Guan-Ying Wang , Ran Han , Xiao-Ping Ouyang , Jin-Cheng He , Jun-Yao Yan . Potential reduction interior point algorithm unfolding of neutron energy spectrum measured by recoil proton method. Chinese Physics C, 2017, 41(5): 056201. doi: 10.1088/1674-1137/41/5/056201
[2]	Hai-Bo Xu , Na Zheng . Optimum angle-cut of collimator for dense objects in high-energy proton radiography. Chinese Physics C, 2016, 40(2): 028201. doi: 10.1088/1674-1137/40/2/028201
[3]	Hao-Jun Zhou , Yan-Peng Yin , Xiao-Qiang Fan , Zheng-Hong Li , Yi-Kang Pu . Measurements of effective delayed neutron fraction in a fast neutron reactor using the perturbation method. Chinese Physics C, 2016, 40(6): 068201. doi: 10.1088/1674-1137/40/6/068201
[4]	Yi Liu , Yi-Gang Yang , Yang Tai , Zhi Zhang . A capture-gated fast neutron detection method. Chinese Physics C, 2016, 40(7): 076201. doi: 10.1088/1674-1137/40/7/076201
[5]	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
[6]	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
[7]	LIU Zhong-Jie , TANG Qi , ZHAN Xia-Yu , CHEN Jia-Bin , SONG Zi-Feng . Uncertainties induced by statistical fluctuations in fast mono-energetic neutron yield measurements. Chinese Physics C, 2014, 38(10): 106201. doi: 10.1088/1674-1137/38/10/106201
[8]	WEI Tao , YANG Guo-Jun , LI Yi-Ding , LONG Ji-Dong , HE Xiao-Zhong , ZHANG Xiao-Ding , JIANG Xiao-Guo , MA Chao-Fan , ZHAO Liang-Chao , YANG Xing-Lin , ZHANG Zhuo , WANG Yuan , PANG Jian , LI Hong , LI Wei-Feng , ZHOU Fu-Xin , SHI Jin-Shui , ZHANG Kai-Zhi , LI Jin , ZHANG Lin-Wen , DENG Jian-Jun . First experimental research in low energy proton radiography. Chinese Physics C, 2014, 38(8): 087003. doi: 10.1088/1674-1137/38/8/087003
[9]	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
[10]	XING Hao-Yang , WANG Li , ZHU Jing-Jun , TANG Chang-Jian , YUE Qian . Simulation of large-scale fast neutron liquid scintillation detector. Chinese Physics C, 2013, 37(2): 026003. doi: 10.1088/1674-1137/37/2/026003
[11]	WEI Tao , YANG Guo-Jun , LONG Ji-Dong , SHI Jin-Shui . Image blur in high energy proton radiography. Chinese Physics C, 2013, 37(6): 068201. doi: 10.1088/1674-1137/37/6/068201
[12]	YANG Zai-Hong , YE Yan-Lin , XIAO Jun , YOU Hai-Bo , LIU HONG-Na , SUN Ye-Lei , WANG Zi-Heng , CHEN Jie . Fast calibration methods using cosmic rays for a neutron detection array. Chinese Physics C, 2012, 36(3): 222-227. doi: 10.1088/1674-1137/36/3/006
[13]	WEI Tao , YANG Guo-Jun , LONG Ji-Dong , WANG Shao-Heng , HE Xiao-Zhong . Imaging beamline for high energy proton radiography. Chinese Physics C, 2012, 36(8): 792-796. doi: 10.1088/1674-1137/36/8/019
[14]	Mahnaz Q , Samina S . Two loop low temperature corrections to electron self energy. Chinese Physics C, 2011, 35(7): 608-611. doi: 10.1088/1674-1137/35/7/002
[15]	DOU Hai-Feng , TANG Bin . An empirical formula for scattered neutron components in fast neutron radiography. Chinese Physics C, 2011, 35(5): 483-487. doi: 10.1088/1674-1137/35/5/016
[16]	WANG Yi , CHENG Jian-Ping , LI Yuan-Jing , LUO Ming , ZHANG Guo-Guang . An MRPC for fast neutron detection. Chinese Physics C, 2010, 34(1): 88-91. doi: 10.1088/1674-1137/34/1/016
[17]	YU Yu-Hong , XU Hua-Gen , XU Hu-Shan , ZHAN Wen-Long , SUN Zhi-Yu , GUO Zhong-Yan , HU Zheng-Guo , WANG Jian-Song , CHEN Jun-Ling , ZHENG Chuan . Studies of a scintillator-bar detector for a neutron wall at an external target facility. Chinese Physics C, 2009, 33(7): 557-561. doi: 10.1088/1674-1137/33/7/010
[18]	LIU Dong-Jian , AN Zhu , TANG Chang-Huan , ZOU Lian . Studies of the aperture design and its pointing precision in fast neutron penumbral imaging. Chinese Physics C, 2008, 32(S2): 235-238.
[19]	SU You-Wu , WANG Gui-Ling , LI Wu-Yuan , LI Zong-Qiang , LI Gui-Sheng , ZHENG Hua-Zhi . Neutron production at the heavy ion research facility in Lanzhou. Chinese Physics C, 2008, 32(5): 348-351. doi: 10.1088/1674-1137/32/5/004
[20]	LAN Chang-Lin , RUAN Xi-Chao , LIU Gang , ZHOU Zu-Ying , TANG Hong-Qing , KONG Xiang-Zhong . Development of a facility for research of charged particle emission induced by fast neutron reactions. Chinese Physics C, 2008, 32(S2): 183-185.

Access

Get Citation

LIU Shu-Quan, cherl Thomas, LI Hang, ZOU Yu-Bin, LU Yuan-Rong and GUO Zhi-Yu. Corrections on energy spectrum and scatterings for fast neutron radiography at NECTAR facility[J]. Chinese Physics C, 2013, 37(11): 118201. doi: 10.1088/1674-1137/37/11/118201

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2013-01-09
Revised: 1900-01-01

Article Metric

Article Views(1786)
PDF Downloads(309)
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

Corrections on energy spectrum and scatterings for fast neutron radiography at NECTAR facility

Corresponding author: LU Yuan-Rong,

Received Date: 2013-01-09

Accepted Date: 1900-01-01

Available Online: 2013-11-05

Abstract: Distortions caused by the neutron spectrum and scattered neutrons are major problems in fast neutron radiography and should be considered for improving the image quality. This paper puts emphasis on the removal of these image distortions and deviations for fast neutron radiography performed at the NECTAR facility of the research reactor FRM-Ⅱ in Technische Universität München (TUM),Germany. The NECTAR energy spectrum is analyzed and established to modify the influence caused by the neutron spectrum,and the Point Scattered Function (PScF) simulated by the Monte-Carlo program MCNPX is used to evaluate scattering effects from the object and improve image quality. Good analysis results prove the sound effects of the above two corrections.

Corrections on energy spectrum and scatterings for fast neutron radiography at NECTAR facility

Abstract：

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Corrections on energy spectrum and scatterings for fast neutron radiography at NECTAR facility

Corresponding author: LU Yuan-Rong,

HTML

目录