Study of neutron spectra in a water bath from a Pb target irradiated by 250 MeV protons

LI Yan-Yan; ZHANG Xue-Ying; JU Yong-Qin; MA Fei; ZHANG Hong-Bin; CHEN Liang; GE Hong-Lin; WAN Bo; LUO Peng; ZHOU Bin; ZHANG Yan-Bin; LI Jian-Yang; XU Jun-Kui; WANG Song-Lin; YANG Yong-Wei; YANG Lei

doi:10.1088/1674-1137/39/4/044001

Chinese Physics C> 2015, Vol. 39> Issue(4) : 044001 DOI: 10.1088/1674-1137/39/4/044001

Study of neutron spectra in a water bath from a Pb target irradiated by 250 MeV protons

Abstract
HTML
Reference
Related

PDF

Abstract：
Spallation neutrons were produced by the irradiation of Pb with 250 MeV protons. The Pb target was surrounded by water which was used to slow down the emitted neutrons. The moderated neutrons in the water bath were measured by using the resonance detectors of Au, Mn and In with a cadmium (Cd) cover. According to the measured activities of the foils, the neutron flux at different resonance energies were deduced and the epithermal neutron spectra were proposed. Corresponding results calculated with the Monte Carlo code MCNPX were compared with the experimental data to check the validity of the code. The comparison showed that the simulation could give a good prediction for the neutron spectra above 50 eV, while the finite thickness of the foils greatly effected the experimental data in low energy. It was also found that the resonance detectors themselves had great impact on the simulated energy spectra.

[1]	Si-Jie Dai , Fu-Rong Xu , Jian-Guo Li , Bai-Shan Hu , Zhong-Hao Sun . Continuum effect in resonance spectra of neutron-rich oxygen isotopes. Chinese Physics C, 2018, 42(11): 114106. doi: 10.1088/1674-1137/42/11/114106
[2]	Meng Huang , Yulan Li , Libo Niu , Zhi Deng , Xiaolei Cheng , Li He , Hongyan Zhang , Jianqiang Fu , Yangyang Yan , Yiming Cai , Yuanjing Li . Performance study of the neutron-TPC. Chinese Physics C, 2017, 41(2): 026001. doi: 10.1088/1674-1137/41/2/026001
[3]	B. S. Ishkhanov , S. V. Sidorov , T. Yu. Tretyakova , E. V. Vladimirova . Mass differences and neutron pairing in Ca, Sn and Pb isotopes. Chinese Physics C, 2017, 41(9): 094101. doi: 10.1088/1674-1137/41/9/094101
[4]	Qiang Zhao , Zhi-Yong He , Lei Yang , Xue-Ying Zhang , Wen-Juan Cui , Zhi-Qiang Chen , Hu-Shan Xu . Monitoring method for neutron flux for a spallation target in an accelerator driven sub-critical system. Chinese Physics C, 2016, 40(7): 076203. doi: 10.1088/1674-1137/40/7/076203
[5]	Jian Liu , Cun Zhang , Zhong-Zhou Ren , Chang Xu . Theoretical study on neutron distribution of ²⁰⁸Pb by parity-violating electron scattering. Chinese Physics C, 2016, 40(3): 034101. doi: 10.1088/1674-1137/40/3/034101
[6]	SHU Neng-Chuan , JIA Min , CHEN Yong-Jing , LIU Ting-Jin . Prompt fission neutron spectra of n+²³⁵U above the (n,nf) fission threshold. Chinese Physics C, 2015, 39(5): 054101. doi: 10.1088/1674-1137/39/5/054101
[7]	ZHANG Dong-Hai , CHEN Yan-Ling , WANG Guo-Rong , LI Wang-Dong , WANG Qing , YAO Ji-Jie , ZHOU Jian-Guo , ZHENG Su-Hua , XU Li-Ling , MIAO Hui-Feng , WANG Peng . Multiplicity fluctuation analysis of target residues in nucleus-emulsion collisions at a few hundred MeV/nucleon. Chinese Physics C, 2014, 38(7): 074001. doi: 10.1088/1674-1137/38/7/074001
[8]	JING Han-Tao , TANG Jing-Yu , YANG Zheng . Study on collimation and shielding of the back-streaming neutrons at the CSNS target. Chinese Physics C, 2013, 37(11): 117002. doi: 10.1088/1674-1137/37/11/117002
[9]	Danial Salehi , Dariush Sardari , Salehi Jozani . Characteristics of a heavy water photoneutron source in boron neutron capture therapy. Chinese Physics C, 2013, 37(7): 078201. doi: 10.1088/1674-1137/37/7/078201
[10]	CHEN Yong-Jing , JIA Min , TAO Xi , QIAN Jing , LIU Ting-Jin , SHU Neng-Chuan . Calculation of prompt fission neutron spectra for ²³⁵U(n,f). Chinese Physics C, 2012, 36(4): 322-328. doi: 10.1088/1674-1137/36/4/005
[11]	WANG Ling-Yu , LU Hao-Qi , YANG Chang-Gen , YU Ze-Yuan , XU Ji-Lei , LIU Jin-Chang , GUAN Meng-Yun , WANG Zhi-Min , WANG Yi-Fang . Study of Tyvek reflectivity in water. Chinese Physics C, 2012, 36(7): 628-632. doi: 10.1088/1674-1137/36/7/011
[12]	ZHANG Bin , CHEN Yi-Xue , WANG Wei-Jin , YANG Shou-Hai , WU Jun , YIN Wen , LIANG Tian-Jiao , JIA Xue-Jun . Preliminary shielding analysis in support of the CSNS target station shutter neutron beam stop design. Chinese Physics C, 2011, 35(8): 791-795. doi: 10.1088/1674-1137/35/8/017
[13]	Ali Zaman . Analysis of shower particle pseudorapidity spectra in interactions of relativistic Au and Pb ions with emulsion nuclei. Chinese Physics C, 2011, 35(12): 1095-1099. doi: 10.1088/1674-1137/35/12/003
[14]	SONG Yin , ZHANG Cong-Hong , WANG Zhi-Guang , ZHAO Zhi-Ming , DUAN Jin-Lai , YAO Cun-Feng . Photoluminescence Study of He ions hot-implanted Sapphire After 208Pb27+ of 230MeV Irradiation. Chinese Physics C, 2005, 29(11): 1112-1114.
[15]	LONG Ji-Dong , LIN Yu-Zheng , LUO Fei , GU Zhuo-Wei , SHI Jin-Shui . Destruction Study of Tantalum Target Impacted by 12MeV Electron Beam. Chinese Physics C, 2004, 28(5): 564-568.
[16]	Wang Jicheng , Zhang Li , Guo guanghui , Zhao Jinhua , Zheng Jiwen . Cross-section Measurement of Neutron-Rich Hg Nuclides in Reaction of 28 MeV/u ¹⁸O with Thick Natural Lead Target. Chinese Physics C, 1995, 19(S3): 241-246.
[17]	Li Wenxin , Sun Tongyu , Sun Rulin , Wu Dingqing , Zhao Lili , Jing Genming , Qi Dahai , Sa Benhao . Study on Target Residues from the Interaction of Copper with 44 MeV/A ¹²C Ions. Chinese Physics C, 1990, 14(S4): 417-426.
[18]	Electron Linac Laboratory . The 250 MeV Section of BEPC 1.1/1.4 GeV e^± Linac. Chinese Physics C, 1988, 12(S1): 19-26.
[19]	The Electron LINAC Department . THE 250MeV SECTION OF BEPC 1.1/1.4GeV e^± LINAC. Chinese Physics C, 1988, 12(3): 365-371.
[20]	WU Jing-Min , LI Jian-Ping , LEI Chuan-Heng , LIU Lie-Fu . YIELD AND ANGULAR DISTRIBUTION MEASUREMENT OF NEUTRON RELEASED BY 80MeV ELECTRON INCIDENT ON TARGET. Chinese Physics C, 1987, 11(4): 433-436.

Access

Get Citation

LI Yan-Yan, ZHANG Xue-Ying, JU Yong-Qin, MA Fei, ZHANG Hong-Bin, CHEN Liang, GE Hong-Lin, WAN Bo, LUO Peng, ZHOU Bin, ZHANG Yan-Bin, LI Jian-Yang, XU Jun-Kui, WANG Song-Lin, YANG Yong-Wei and YANG Lei. Study of neutron spectra in a water bath from a Pb target irradiated by 250 MeV protons[J]. Chinese Physics C, 2015, 39(4): 044001. doi: 10.1088/1674-1137/39/4/044001

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2014-09-04
Revised: 1900-01-01

Article Metric

Article Views(1908)
PDF Downloads(210)
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

Study of neutron spectra in a water bath from a Pb target irradiated by 250 MeV protons

Corresponding author: ZHANG Xue-Ying,

Received Date: 2014-09-04

Accepted Date: 1900-01-01

Available Online: 2015-04-05

Abstract: Spallation neutrons were produced by the irradiation of Pb with 250 MeV protons. The Pb target was surrounded by water which was used to slow down the emitted neutrons. The moderated neutrons in the water bath were measured by using the resonance detectors of Au, Mn and In with a cadmium (Cd) cover. According to the measured activities of the foils, the neutron flux at different resonance energies were deduced and the epithermal neutron spectra were proposed. Corresponding results calculated with the Monte Carlo code MCNPX were compared with the experimental data to check the validity of the code. The comparison showed that the simulation could give a good prediction for the neutron spectra above 50 eV, while the finite thickness of the foils greatly effected the experimental data in low energy. It was also found that the resonance detectors themselves had great impact on the simulated energy spectra.

Study of neutron spectra in a water bath from a Pb target irradiated by 250 MeV protons

Abstract：

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Study of neutron spectra in a water bath from a Pb target irradiated by 250 MeV protons

Corresponding author: ZHANG Xue-Ying,

HTML

目录