Fission of heavy nuclei induced by stopped antiprotons. I. Inclusive characteristics of fission fragments

1994 ◽  
Vol 49 (5) ◽  
pp. 2555-2568 ◽  
Author(s):  
P. Hofmann ◽  
A. S. Iljinov ◽  
Y. S. Kim ◽  
M. V. Mebel ◽  
H. Daniel ◽  
...  
Keyword(s):  
Heavy Nuclei ◽  
Fission Fragments

The recoil characteristics of fission fragments produced by interaction of high-energy α-particles with heavy nuclei

1978 ◽  
Vol 46 (3) ◽  
pp. 488-494
Author(s):  
B. Grabež ◽  
Ž. Todorović ◽  
R. Antanasijević
Keyword(s):  
High Energy ◽  
Heavy Nuclei ◽  
Fission Fragments ◽  
Α Particles

Fission of heavy nuclei induced by stopped antiprotons. II. Correlations between fission fragments

1996 ◽  
Vol 54 (5) ◽  
pp. 2469-2476 ◽  
Author(s):  
Y. S. Kim ◽  
A. S. Iljinov ◽  
M. V. Mebel ◽  
P. Hofmann ◽  
H. Daniel ◽  
...  
Keyword(s):  
Heavy Nuclei ◽  
Fission Fragments

scholarly journals Investigation of the heavy nuclei fission with anomalously high values of the fission fragments total kinetic energy

2018 ◽  
Vol 169 ◽  
pp. 00011
Author(s):  
Vitaly Khryachkov ◽  
Andrei Goverdovskii ◽  
Vladimir Ketlerov ◽  
Vecheslav Mitrofanov ◽  
Alexei Sergachev
Keyword(s):  
Kinetic Energy ◽  
Compound Nucleus ◽  
Fission Fragment ◽  
Total Kinetic Energy ◽  
Fast Neutrons ◽  
Heavy Nuclei ◽  
Fission Fragments ◽  
Close Analysis ◽  
Fragment Distribution ◽  
Induced Fission

Binary fission of 232Th and 238U induced by fast neutrons were under intent investigation in the IPPE during recent years. These measurements were performed with a twin ionization chamber with Frisch grids. Signals from the detector were digitized for further processing with a specially developed software. It results in information of kinetic energies, masses, directions and Bragg curves of registered fission fragments. Total statistics of a few million fission events were collected during each experiment. It was discovered that for several combinations of fission fragment masses their total kinetic energy was very close to total free energy of the fissioning system. The probability of such fission events for the fast neutron induced fission was found to be much higher than for spontaneous fission of 252Cf and thermal neutron induced fission of 235U. For experiments with 238U target the energy of incident neutrons were 5 MeV and 6.5 MeV. Close analysis of dependence of fission fragment distribution on compound nucleus excitation energy gave us some explanation of the phenomenon. It could be a process in highly excited compound nucleus which leads the fissioning system from the scission point into the fusion valley with high probability.

Study of the zones of damage caused by fission fragments of heavy nuclei

1967 ◽  
Vol 22 (1) ◽  
pp. 26-29
Author(s):  
V. K. Gorshkov ◽  
L. N. L'vov ◽  
P. A. Petrov
Keyword(s):  
Heavy Nuclei ◽  
Fission Fragments

Spallation and fission fragments of heavy nuclei induced by 18 GeV protons registered by means of solid plastic detectors

1967 ◽  
Vol 90 (1) ◽  
pp. 186-188 ◽  
Author(s):  
M. Debeauvais ◽  
R. Stein ◽  
J. Ralarosy ◽  
P. Cüer
Keyword(s):  
Heavy Nuclei ◽  
Fission Fragments

KINEMATIC CORRELATION OF THE TERNARY FISSION FOR THE SYSTEM197Au+197Au

2010 ◽  
Vol 19 (02) ◽  
pp. 307-318 ◽  
Author(s):  
JUNLONG TIAN ◽  
XIAN LI ◽  
SHIWEI YAN ◽  
XIZHEN WU ◽  
ZHUXIA LI
Keyword(s):  
Molecular Dynamics ◽  
Time Dependent ◽  
Ternary Fission ◽  
Quantum Molecular Dynamics ◽  
Heavy Nuclei ◽  
Dynamics Model ◽  
Mass Distributions ◽  
Fission Fragments

Collisions of very heavy nuclei197Au +197Au at the energy of 15A MeV has been studied with the improved quantum molecular dynamics model. The experimental mass distributions of ternary fission fragments for the system197Au +197Au are reproduced well. The direct and sequential ternary fission modes are studied by the time dependent snapshots of typical ternary events. The analysis of deviation from Viola systematics indicates the nonstatistical feature of the ternary fission in these reactions.

Pair Production in a Field of Heavy Nuclei and in a Gravitational Field

1971 ◽  
Vol 105 (12) ◽  
pp. 780-781 ◽  
Author(s):  
Ya.B. Zel'dovich ◽  
Lev P. Pitaevskii ◽  
Valentin S. Popov ◽  
Aleksei A. Starobinskii
Keyword(s):  
Gravitational Field ◽  
Pair Production ◽  
Heavy Nuclei
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