Fission fragments mass distributions of nuclei populated by the multinucleon transfer channels of the 18 O + 232 Th reaction

The charge (mass) distributions of fission fragments resulting from low- and high-energy fission of the isotopes of Fm and No are studied with the statistical scission-point fission model. The calculated results are compared with the available experimental data. The transformation of the shape of the charge distribution with increasing isospin and excitation energy occurs gradually. At some critical excitation energy the the saturation of the symmetric component of the charge (mass) yield is demonstrated.

Download Full-text

Correlated transitions in TKE and mass distributions of fission fragments described by 4-D Langevin equation

Scientific Reports ◽

10.1038/s41598-018-37993-7 ◽

2019 ◽

Vol 9 (1) ◽

Cited By ~ 14

Author(s):

Mark Dennis Usang ◽

Fedir A. Ivanyuk ◽

Chikako Ishizuka ◽

Satoshi Chiba

Keyword(s):

Langevin Equation ◽

Mass Distributions ◽

Fission Fragments

Download Full-text

Effect of the doubly magic shell closures in Sn132 and Pb208 on the mass distributions of fission fragments of superheavy nuclei

Physical Review C ◽

10.1103/physrevc.101.011601 ◽

2020 ◽

Vol 101 (1) ◽

Cited By ~ 1

Author(s):

C. Ishizuka ◽

X. Zhang ◽

M. D. Usang ◽

F. A. Ivanyuk ◽

S. Chiba

Keyword(s):

Superheavy Nuclei ◽

Mass Distributions ◽

Fission Fragments ◽

Shell Closures

Download Full-text

Tests of ionization chambers for future photofission experiments

EPJ Web of Conferences ◽

10.1051/epjconf/201819304006 ◽

2018 ◽

Vol 193 ◽

pp. 04006

Author(s):

Marius Peck ◽

Joachim Enders ◽

Martin Freudenberger ◽

Alf Göök ◽

Andreas Oberstedt ◽

...

Keyword(s):

Preliminary Data ◽

Ionization Chamber ◽

Azimuthal Angle ◽

Additional Measurement ◽

Ionization Chambers ◽

Mass Distributions ◽

Fission Fragments ◽

Induced Fission ◽

Set Up ◽

Proof Of Principle

A recent set-up of a multi-cathode Frisch-grid ionization chamber and experimental results of a proof-of-principle experiment are presented. Preliminary data on the obtained polar angular and mass distributions as well as total kinetic energy of fission fragments produced in neutron-induced fission of 232Th and 238U are discussed that show that the chamber has been operated successfully. For the additional measurement of the azimuthal angular distribution, a design of segmented anodes has been tested. Preliminary data do not allow a suffcient reconstruction of the azimuthal angle.

Download Full-text

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

International Journal of Modern Physics E ◽

10.1142/s0218301310014777 ◽

2010 ◽

Vol 19 (02) ◽

pp. 307-318 ◽

Cited By ~ 3

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.

Download Full-text