Overshooting and Prescission Neutron Multiplicity in Nuclear Fission

SUN Zhe-Min; FENG Ren-Fa; WU Xi-Zhen; ZHU Yi-Zhong

近期发现有不法分子冒充我刊与作者联系，借此进行欺诈等不法行为，请广大作者加以鉴别，如遇诈骗行为，请第一时间与我刊编辑部联系确认（《中国物理C》（英文）编辑部电话：010-88235947,010-88236950），并作报警处理。

本刊再次郑重声明：

（1）本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137

（2）本刊采编系统作者中心是投稿的唯一路径，该系统为ScholarOne远程稿件采编系统，仅在本刊投稿网网址（https://mc03.manuscriptcentral.com/cpc）设有登录入口。本刊不接受其他方式的投稿，如打印稿投稿、E-mail信箱投稿等，若以此种方式接收投稿均为假冒。

（3）所有投稿均需经过严格的同行评议、编辑加工后方可发表，本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿，并收取发表费用，均为假冒。

《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 1992, Vol. 16> Issue(6) : 571-576

Overshooting and Prescission Neutron Multiplicity in Nuclear Fission

Institute of Atomic Energy,Beijing 102413

Abstract
HTML
Reference
Related

PDF

Abstract：
The transient behavior in approaching to quasi-stationary state for fissioning systems is studied by diffusion model.It is shown that there are two regions:Kramers region for Tf and overshooting region for T>E_f according to the transient behavior of probability current.A particular attention is paid to the overshooting region because it tends to decrease the enhancement effect of neutron multiplicity and even leads to its disappearance.However it has been proved that the enhancement of neutron multiplicity results from the transient behavior in fission process.

References

[1]

H.A. Kramers, Physica, 7 (1940), 284.[2] 冯仁发等，原子核物理，10(1988)，16.[3] 冯仁发等，原子核物理，10(1988)?120.[4] Wu Xiahen, et al., Commum，.Theor. Phys., 1(1982), 769.[5] Wu Xiahen, et al., Chinese Phys. Lett 5(1988), 41.[6] Zhuo Yiahong, et al., Nuclear Data for Science and Technology (1988 MITO)667.[7] 孙豁民等，原子核物理10(1988)，307.[8] P.Grange, et al., Phys. Rev., C34 (1986), 209.

[1]	YE Wei . Particle Evaporation in the Fission Process of Nuclei ^100,104Sn. Chinese Physics C, 2006, 30(3): 217-219.
[2]	HU Guang-Chun , GONG Jian , LIU Xiao-Ya , XIONG Zong-Hua , HAO Fan-Hua , XIANG Yong-Chun , LI Run-Dong . Investigation of Feasibility of Measurement of Nuclear Fission Number by Using 3—5MeV γ-Rays. Chinese Physics C, 2006, 30(12): 1180-1183.
[3]	JIA Ying , BAO Jing-Dong . Effect of Friction on Neutron Emission in Fission of Heavy Nuclei. Chinese Physics C, 2006, 30(9): 868-871.
[4]	HU Rong-Jiang , WU He-Yu , JIN Gen-Ming , ZHU Yong-Tai , LI Song-Lin , XIAO Zhi-Gang , WANG Hong-Wei , DUAN Li-Min , LI Zu-Yu , YIN Xu , WANG Su-Fang , ZHANG Bao-Guo , WEI Zhi-Yo , , , . Isospin Effect of Charged Particle Multiplicity in Intermediate Energy Heavy Ion Collisions. Chinese Physics C, 2003, 27(11): 990-994.
[5]	LU Hong-Feng , MENG Jie , ZHANG Shuang-Quan . Giant Neutron Halos in Λ-Hypernuclei ΛA a and ΛΛ ACa in the Relativistic Continuum Hartree-Bogoliubov Theory. Chinese Physics C, 2003, 27(5): 411-415.
[6]	ZHAO WeiJuan , LIU JianFeng , HUO YuKun . Resonance Phenomenon in the Fast Neutron Radiative Capture Reaction for ¹²C. Chinese Physics C, 2000, 24(12): 1137-1141.
[7]	Han Hongyin , Huang Shengnian , Shen Guanren , Qiao Ying , Sun Gang . Anomalies of Neutron and γ-Ray Emission in Ternary Fission of ²⁵²Cf. Chinese Physics C, 1998, 22(3): 193-199.
[8]	Dai Guangxi . Deformation Potentials in Symmetric Multi-Fold Fission and Their Temperature-Dependence. Chinese Physics C, 1995, 19(5): 447-454.
[9]	Liu Fuhu , Tang Xiaowei . Multiplicity and Angular Distribution of Projectile Fragments in Relativistic Nucleus-Nucleus Collisions. Chinese Physics C, 1994, 18(4): 334-339.
[10]	Zhong Yunxiao , Hu Jimin . Fission Probability Calculation by Solving Fokker-Planck Equation With Variation Method. Chinese Physics C, 1994, 18(4): 340-346.
[11]	CHEN Xin-Yi , HU Ji-Min . Calculation of Nuclear Fission Using a Macroscopic Model. Chinese Physics C, 1991, 15(3): 279-283.
[12]	JIANG Dong-Xing . INCLUSIVE NEUTRON MULTIPLICITY IN HEAVY-ION COLLISION MEASURED BY A 4π NEUTRON DETECTOR. Chinese Physics C, 1990, 14(6): 537-541.
[13]	WU Xi-Zhen , LI Zhu-Xia , ZHUO Yi-Zhong . QUANTUM BROWNIAN MOTION AND NUCLEAR FISSION. Chinese Physics C, 1990, 14(4): 345-351.
[14]	SA Ben-Hao , ZHENG Yu-Ming , ZHANG Xiao-Zhe . DEPENDENCE OF PHASE TRANSITION ON THE MASS NUMBER OF HOT NUCLEI. Chinese Physics C, 1990, 14(6): 555-560.
[15]	FENG Ren-Fa , ZHUO Yi-Zhong , LI Jun-Qing . ANALYTICAL MODEL FOR THE CALCULATION OF FISSION RATE. Chinese Physics C, 1984, 8(4): 453-460.
[16]	HE Ze-Jun , LI Pan-Lin , ZHANG Jia-Ju . DIFFUSION MODEL OF HEAVY NUCLEUS FISSION. Chinese Physics C, 1983, 7(5): 611-617.
[17]	He Ze-jun , Li Pan-lin . TRANSPORT MODEL OF HEAVY NUCLEUS FISSION. Chinese Physics C, 1980, 4(5): 640-648.
[18]	HU JI-MIN , WANG ZHENG-SHING . THE EVAPORATION MODEL THEORY FOR THE FISSION PROMPT NEUTRON SPECTRUM OF HEAVY NUCLEI. Chinese Physics C, 1979, 3(6): 772-783.
[19]	HE ZE-JUN , LEE PAN-LIN . THE MICROSCOPIC CALCULATION OF THE STATISTICAL THEORY OF NUCLEAR FISSION. Chinese Physics C, 1978, 2(4): 350-349.
[20]	LIU GOU-XING , WANG ZJO-GOU , YIN SHU-ZHI , HAO BIN-GAN , YUAN SHUANG-GUI , XIA XING-SHUO . ANGULAR DISTRIBUTIONS OF FISSION FRAGMENTS AND THE SHAPES OF THE SADDLE POINT OF COMPOUND NUCLEI. Chinese Physics C, 1978, 2(3): 242-248.

Access

Get Citation

SUN Zhe-Min, FENG Ren-Fa, WU Xi-Zhen and ZHU Yi-Zhong. Overshooting and Prescission Neutron Multiplicity in Nuclear Fission[J]. Chinese Physics C, 1992, 16(6): 571-576.

SUN Zhe-Min, FENG Ren-Fa, WU Xi-Zhen and ZHU Yi-Zhong. Overshooting and Prescission Neutron Multiplicity in Nuclear Fission[J]. Chinese Physics C, 1992, 16(6): 571-576. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1900-01-01
Revised: 1900-01-01

Article Metric

Article Views(2649)
PDF Downloads(446)
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

Overshooting and Prescission Neutron Multiplicity in Nuclear Fission

Corresponding author: SUN Zhe-Min,

Institute of Atomic Energy,Beijing 102413

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1992-06-05

Abstract: The transient behavior in approaching to quasi-stationary state for fissioning systems is studied by diffusion model.It is shown that there are two regions:Kramers region for Tf and overshooting region for T>E_f according to the transient behavior of probability current.A particular attention is paid to the overshooting region because it tends to decrease the enhancement effect of neutron multiplicity and even leads to its disappearance.However it has been proved that the enhancement of neutron multiplicity results from the transient behavior in fission process.