Multichannel Fission Model Applied to <sup>233,235,238</sup>U(n,f)

Fan Tieshuan; Hu Jimin; Bao Shanglian

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 1996, Vol. 20> Issue(S2) : 187-195

Multichannel Fission Model Applied to ^233,235,238U(n,f)

Department of Technical Physics, Peking University, Beijing, China

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Abstract：
In the frame of the multichannel fission and random neck rupture model, the fragment mass, average kinetic energy distributions, and the neutron multiplicities of the neutron-induced fissions ^233,235,238U are calculated covering the incident neutron energy range from thermal to 6 MeV. The theoretical results are in accord with the experimental data. The dependence of the fission channel probability on the excitation energy has been investigated.
- random neck rupture ,
- multichannel fission model ,
- fission mechanism

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[3]	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
[4]	Muhammad Ikram , Zafar Yasin , Warda Iram , Shahida Jabeen . Cascade-exciton model analysis of mass dependence of pion-induced fission. Chinese Physics C, 2014, 38(7): 076101. doi: 10.1088/1674-1137/38/7/076101
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[7]	SUN Qian , SHANGGUAN Dan-Hua , BAO Jing-Dong . A dumbbell model with five parameters describing nuclear fusion or fission. Chinese Physics C, 2013, 37(1): 014102. doi: 10.1088/1674-1137/37/1/014102
[8]	SONG Yu-Shou , Margaryan A , HU Bi-Tao , TANG Li-Guang . Performance of the low pressure MWPCs for fission fragments under a high background. Chinese Physics C, 2011, 35(8): 758-762. doi: 10.1088/1674-1137/35/8/011
[9]	Zafar Yasin , Warda Iram , Muhammad Asghar , Ikram Shahzad . Cascade-exciton model analysis of level density parameter dependence in proton induced fission cross sections of some sub-actinide nuclei. Chinese Physics C, 2011, 35(11): 1013-1016. doi: 10.1088/1674-1137/35/11/006
[10]	DONG Jian-Min , ZHANG Hong-Fei , ZUO Wei , LI Jun-Qing . Unified fission model for proton emission. Chinese Physics C, 2010, 34(2): 182-185. doi: 10.1088/1674-1137/34/2/005
[11]	WANG Kun , MA Yu-Gang , ZHENG Qing-Shan , CAI Xiang-Zhou , FANG De-Qing , FU Yao , LU Guang-Cheng , TIAN Wen-Dong , WANG Hong-Wei . Temperature dependent fission fragment distribution in the Langevin equation. Chinese Physics C, 2009, 33(S1): 119-122. doi: 10.1088/1674-1137/33/S1/038
[12]	TIAN Jun-Long , LI Xian , WU Xi-Zhen , LI Zhu-Xia , YAN Shi-Wei . Understanding of the dissipation mechanism in ternary fission for the system ¹⁹⁷Au+¹⁹⁷Au. Chinese Physics C, 2009, 33(S1): 109-112. doi: 10.1088/1674-1137/33/S1/035
[13]	LIU Ting-Jin , SUN Zheng-Jun , SHU Neng-Chuan . Systematics on fission fragment mass distribution of neutron induced 235U fission. Chinese Physics C, 2008, 32(7): 556-560. doi: 10.1088/1674-1137/32/7/009
[14]	YUAN Shuang-Gui , XU Yan-Bing , DING Hua-Jie , YANG Wei-Fan , NIU Yan-Ning , XIAO Yong-Hou . β-delayed fission of ²²⁸Ac. Chinese Physics C, 2008, 32(S2): 53-55.
[15]	Liu Guoxing , Chen Keliang , Yu Xian , Dai Guangxi . Fission Angular Distributions for the Incomplete Fusion Reactions. Chinese Physics C, 1997, 21(S3): 35-42.
[16]	Fan Tieshuan , Hu Jimin , Bao Shanglian . Multichannel Fission Model Applied to ^223,235,238U (n,f). Chinese Physics C, 1996, 20(5): 422-429.
[17]	Liu Zhuhua , Xu Jincheng , Zhang Huanqiao , Qian Xing , Qiao Yu , Lin Chengjian , Xu Kan . Subbarrier Complete Fusion-Fission Reactions of ¹⁶O+²³²Th. Chinese Physics C, 1994, 18(S2): 121-128.
[18]	Fan Tieshuan , Hu Jimin , Bao Shanglian . The Multichannel Fission Model Applied to ²³⁵U(n,f). Chinese Physics C, 1994, 18(S1): 47-55.
[19]	Liu Guoxing , Chen Keliang , Wang Sufang , Cai Wei . Angular Distributions of Fission-fragments in Interactions of ¹²C Ions with Various Targets. Chinese Physics C, 1988, 12(S2): 209-218.
[20]	Dai Guangxi , Li Weisheng . Exploration of Optimum Shape in Symmetric Fission. Chinese Physics C, 1988, 12(S4): 399-404.

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Fan Tieshuan, Hu Jimin and Bao Shanglian. Multichannel Fission Model Applied to ^233,235,238U(n,f)[J]. Chinese Physics C, 1996, 20(S2): 187-195.

Fan Tieshuan, Hu Jimin and Bao Shanglian. Multichannel Fission Model Applied to ^233,235,238U(n,f)[J]. Chinese Physics C, 1996, 20(S2): 187-195. shu

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Received: 1995-04-03

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Supported by the Foundation from the Ph.D. Program of High Education of China and Nuclear Science Foundation of China National Nuclear Corporation.

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沈阳化工大学材料科学与工程学院沈阳 110142

Multichannel Fission Model Applied to ^233,235,238U(n,f)

Department of Technical Physics, Peking University, Beijing, China

Received Date: 1995-04-03

Fund Project: Supported by the Foundation from the Ph.D. Program of High Education of China and Nuclear Science Foundation of China National Nuclear Corporation.

Abstract: In the frame of the multichannel fission and random neck rupture model, the fragment mass, average kinetic energy distributions, and the neutron multiplicities of the neutron-induced fissions ^233,235,238U are calculated covering the incident neutron energy range from thermal to 6 MeV. The theoretical results are in accord with the experimental data. The dependence of the fission channel probability on the excitation energy has been investigated.