Four-dimensional Langevin approach to low-energy nuclear fission of 
U236

We applied the four-dimensional Langevin approach to the description of fission of 235U by neutrons and calculated the dependence of the excitation energy of fission fragments on their mass number. For this we have fitted the compact just-before-scission configuration obtained by the Langevin calculations by the two separated fragments and calculated the intrinsic excitation and the deformation energy of each fragment accurately taking into account the shell and pairing effects and their dependence on the temperature and mass of the fragments. For the sharing of energy between the fission fragments we have used the simplest and most reliable assumption - the temperature of each fragment immediately after the neck rupture is the same as the temperature of mother nucleus just before scission. The calculated excitation energy of fission fragments clearly demonstrates the saw-tooth structure in the dependence on fragment mass number.

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Remarks on a quantum mechanical treatment of internal excitation in low energy nuclear fission

Zeitschrift für Physik A Atomic Nuclei ◽

10.1007/bf01283777 ◽

1988 ◽

Vol 329 (2) ◽

pp. 209-215 ◽

Cited By ~ 1

Author(s):

H. Walliser ◽

K. Wildermuth ◽

F. G�nnenwein

Keyword(s):

Mechanical Treatment ◽

Nuclear Fission ◽

Low Energy ◽

Quantum Mechanical ◽

Quantum Mechanical Treatment ◽

Internal Excitation

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Dynamical Approach to Low-Energy Nuclear Fission in Terms of Langevin Equation

Fission and Properties of Neutron-Rich Nuclei ◽

10.1142/9789813229426_0066 ◽

2017 ◽

Author(s):

Satoshi Chiba ◽

Mark Dennis Anak Usang ◽

Chikako Ishizuka ◽

Hiroki Jojima ◽

Fedir Ivanyuk

Keyword(s):

Langevin Equation ◽

Nuclear Fission ◽

Low Energy ◽

Dynamical Approach

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Low-energy nuclear fission and our understanding of the nucleus

Journal of Radioanalytical and Nuclear Chemistry ◽

10.1007/bf02039453 ◽

1990 ◽

Vol 142 (1) ◽

pp. 53-78 ◽

Cited By ~ 7

Author(s):

H. L. Hall ◽

D. C. Hoffman

Keyword(s):

Nuclear Fission ◽

Low Energy

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Analysis of nuclear fission properties with the Langevin approach in Fourier shape parametrization

Physical Review C ◽

10.1103/physrevc.103.044601 ◽

2021 ◽

Vol 103 (4) ◽

Author(s):

Li-Le Liu ◽

Yong-Jing Chen ◽

Xi-Zhen Wu ◽

Zhu-Xia Li ◽

Zhi-Gang Ge ◽

...

Keyword(s):

Nuclear Fission ◽

Langevin Approach

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FISSION OF EXCITED HEAVY NUCLEI

Canadian Journal of Chemistry ◽

10.1139/v58-247 ◽

1958 ◽

Vol 36 (12) ◽

pp. 1707-1719 ◽

Cited By ~ 13

Author(s):

B. D. Pate

Keyword(s):

Fission Products ◽

Nuclear Fission ◽

Low Energy ◽

Heavy Nuclei ◽

Fission Process ◽

Distribution Mode ◽

Charge Displacement ◽

Comparison Of The Results ◽

Average Neutron ◽

Mev Protons

The results of published calculations on the prompt nuclear cascade and nuclear evaporation processes are combined with some assumptions regarding the nuclear fission process and fission widths to calculate the average neutron-to-proton ratios of fission products from Th + 8-Mev protons, Th + 87-Mev protons, and U + 450-Mev protons. Comparison of the results with experimental data indicates that the fission charge distribution mode characterized by the equal charge displacement hypothesis, hitherto considered a low energy phenomenon, persists in uranium and thorium up to the highest energy studied. There is also some evidence that fission occurs in excited heavy nuclei before complete de-excitation by particle emission, in agreement with other experimental work.

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