THE MICROSCOPIC CALCULATION OF THE STATISTICAL THEORY OF NUCLEAR FISSION

HE ZE-JUN; LEE PAN-LIN

Chinese Physics C> 1978, Vol. 2> Issue(4) : 350-349

THE MICROSCOPIC CALCULATION OF THE STATISTICAL THEORY OF NUCLEAR FISSION

HE ZE-JUN ,
LEE PAN-LIN

Abstract
HTML
Reference
Related

PDF

Abstract：
Based on the statistical fission theory, we have calculated the mass and kinetic energy distributions as well as other physical quantities of ²³⁵U fission induced by thermal neutron using microscopical method. That is, the quantum state densities of the fragments at scission point are calculated by means of BCS hamiltonian. The contribution of the collective deformation of fragments to the quantum state density has been taken into consideration. The potential energy of fragment is calculated by means of Strutinski procedure, and the shelling effect, pairing correlation as well as collective deformation have been taken into consideration in calculating the excitation energy at scission point. The scission point distance is treated as an adjustable parameter.Comparing with other statistical fission theories, our results give better agreement with existing experiments.

References

[1]

P. Forg, Phys. Rev., 102(1956), 434.[2] L. G. Moretto, Nucl. Phys., A182(1972), 641.[3] V. M. Strutinski, Nucl. Phys., A95(1967), 420.[4] F. Dickmann, K. Dietrich, Nucl. Phys., A129(1969), 241.[5] L. G. Moretto et al., Energia Nucleare, 17(1970), 436.[6] W. Meyers, W. J. Swiatecki, Nucl. Phys., 81(1966), 1.[7] H. Okamoto, et al., J. Phys. Soc. Japan., 30(1971), 927.[8] 陈仁烈，《统计物理引论》，(1961), 207.[9] A. Y. Abul-Magd, Phys. Rev., C5 (1972 ) , 599.[10] H. W. Schmitt et al., Phys. Rev., 141(1966), 1146.[11] H. Okamoto et al., J. Phys. Soc. Japan., 34(1973), 588.[12] T. Yamamoto et al., J. Nucl. Sci. Technol., 11(1974), 461.[13] R. Vandenbosch J. R. Huizenga, 'Nuclear Fission”，(1973).

[1]	ZHI Qi-Jun , REN Zhong-Zhou . Systematic Calculation on Ground State Properties of Superheavy Even-Even Nuclei with Macroscopic-Microscopic Model. Chinese Physics C, 2006, 30(1): 32-37.
[2]	YAO Jiang-Ming , MEI Hua , MENG Jie , CHEN Hong . Magnetic Moment in Relativistic Mean Field Theory. Chinese Physics C, 2006, 30(S2): 42-44.
[3]	YU Hong-Wei , CAI Cong-Hai , ZHAO Zhi-Xiang . Theoretical Calculations for p+²³⁸U Reactions. Chinese Physics C, 2005, 29(3): 263-267.
[4]	ZHANG Zheng-Jun , SHEN Qing-Biao , HAN Yin-Lu , CAI Chong-Hai , SUN Xiu-Quan , HOU Xun . Theoretical Calculations of Microscopic Nuclear Reaction Data for p+²⁰⁹Bi in Energy Region up to 300MeV. Chinese Physics C, 2002, 26(6): 600-606.
[5]	Zhao Yumin , Chen Jinquan . Nuclear Pair Shell Model and Its Numerical Calculation (Ⅱ). Chinese Physics C, 1997, 21(5): 438-444.
[6]	Zhao Yumin , Chen Jinquan , Chen Bingqing . Nuclear Pair Shell Model and Its Numerical Calculation(I). Chinese Physics C, 1997, 21(4): 356-361.
[7]	Zhang Fengshou , Ge Lingxiao . A Static Theory for Nuclear Multifragmentation Ⅱ.lntermittent Pattern and Critical Behaviour. Chinese Physics C, 1997, 21(5): 445-452.
[8]	Zhong Yunxiao , Hu Jimin . Fission Probability Calculation by Solving Fokker-Planck Equation With Variation Method. Chinese Physics C, 1994, 18(4): 340-346.
[9]	Feng Renfa , Wu Xizhen , Zhuo Yizhong . On Theoretical Analysis of Kramers' Stationary Solution in the Diffusion Model of Fission. Chinese Physics C, 1994, 18(4): 361-365.
[10]	CHEN Xin-Yi , HU Ji-Min . Calculation of Nuclear Fission Using a Macroscopic Model. Chinese Physics C, 1991, 15(3): 279-283.
[11]	DOU Zhi-Guo , JING Xiao-Gong , ZHAO Guo-Quan . SINGLE-PARTICLE AND SINGLE-HOLE ENERGIES IN THE ⁴⁰Ca REGION. Chinese Physics C, 1990, 14(11): 1031-1038.
[12]	WU Xi-Zhen , LI Zhu-Xia , ZHUO Yi-Zhong . QUANTUM BROWNIAN MOTION AND NUCLEAR FISSION. Chinese Physics C, 1990, 14(4): 345-351.
[13]	ZHONG Yun-Xiao . STUDY ON THE INSTANTANEOUS PROCESS OF NUCLEAR FISSION WITH A COMPUTER GENERATED RANDON FORCE. Chinese Physics C, 1989, 13(5): 451-454.
[14]	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.
[15]	CAI Chong-Hai , ZHUO Yi-Zhong . CALCULATION OF MUON FINAL PROBABILITIES AFTER THE PROMPT FISSION OF MUONIC ATOM. Chinese Physics C, 1983, 7(2): 203-216.
[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]	WANG CHENG-SHING . NON-EQUILIBRIUM STATISTICAL THEORY OF NUCLEAR FISSION MASS DISTRIBUTION. Chinese Physics C, 1982, 6(2): 219-230.
[18]	YANG SHAN-DE , JING XIAO-GONG , WANG KE-XIE , WU SHI-SHU . SINGLE PARTICLE AND SINGLE HOLE ENERGIES IN THE ¹⁶O REGION. Chinese Physics C, 1982, 6(4): 480-490.
[19]	He Ze-jun , Li Pan-lin . TRANSPORT MODEL OF HEAVY NUCLEUS FISSION. Chinese Physics C, 1980, 4(5): 640-648.
[20]	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.

Access

Get Citation

HE ZE-JUN and LEE PAN-LIN. THE MICROSCOPIC CALCULATION OF THE STATISTICAL THEORY OF NUCLEAR FISSION[J]. Chinese Physics C, 1978, 2(4): 350-349.

HE ZE-JUN and LEE PAN-LIN. THE MICROSCOPIC CALCULATION OF THE STATISTICAL THEORY OF NUCLEAR FISSION[J]. Chinese Physics C, 1978, 2(4): 350-349. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1977-12-07
Revised: 1900-01-01

Article Metric

Article Views(2940)
PDF Downloads(28)
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

THE MICROSCOPIC CALCULATION OF THE STATISTICAL THEORY OF NUCLEAR FISSION

HE ZE-JUN
LEE PAN-LIN

Received Date: 1977-12-07
Accepted Date: 1900-01-01
Available Online: 1978-08-05

Abstract: Based on the statistical fission theory, we have calculated the mass and kinetic energy distributions as well as other physical quantities of ²³⁵U fission induced by thermal neutron using microscopical method. That is, the quantum state densities of the fragments at scission point are calculated by means of BCS hamiltonian. The contribution of the collective deformation of fragments to the quantum state density has been taken into consideration. The potential energy of fragment is calculated by means of Strutinski procedure, and the shelling effect, pairing correlation as well as collective deformation have been taken into consideration in calculating the excitation energy at scission point. The scission point distance is treated as an adjustable parameter.Comparing with other statistical fission theories, our results give better agreement with existing experiments.