Fission fragment yield distribution in the heavy-mass region from the Pu239 ( nth,f ) reaction

2017 ◽  
Vol 96 (1) ◽  
Author(s):  
Y. K. Gupta ◽  
D. C. Biswas ◽  
O. Serot ◽  
D. Bernard ◽  
O. Litaize ◽  
...  
Keyword(s):  
Fission Fragment ◽  
Mass Region ◽  
Yield Distribution ◽  
Fragment Yield

scholarly journals Isospin Conservation in Neutron Rich Systems of Heavy Nuclei

2018 ◽  
Vol 178 ◽  
pp. 05007 ◽  
Author(s):  
Ashok Kumar Jain ◽  
Swati Garg
Keyword(s):  
Theoretical Calculation ◽  
Fission Fragment ◽  
Nuclear Fission ◽  
Heavy Ion ◽  
Mass Region ◽  
Fission Reactions ◽  
Heavy Nuclei ◽  
Practical Applications ◽  
Heavy Ion Fusion

It is generally believed that isospin would diminish in its importance as we go towards heavy mass region due to isospin mixing caused by the growing Coulomb forces. However, it was realized quite early that isospin could become an important and useful quantum number for all nuclei including heavy nuclei due to neutron richness of the systems [1]. Lane and Soper [2] also showed in a theoretical calculation that isospin indeed remains quite good in heavy mass neutron rich systems. In this paper, we present isospin based calculations [3, 4] for the fission fragment distributions obtained from heavy-ion fusion fission reactions. We discuss in detail the procedure adopted to assign the isospin values and the role of neutron multiplicity data in obtaining the total fission fragment distributions. We show that the observed fragment distributions can be reproduced rather reasonably well by the calculations based on the idea of conservation of isospin. This is a direct experimental evidence of the validity of isospin in heavy nuclei, which arises largely due to the neutron-rich nature of heavy nuclei and their fragments. This result may eventually become useful for the theories of nuclear fission and also in other practical applications.

scholarly journals Theoretical investigation of fission fragment kinetic energy distributions in the symmetric mass region for233U(nth,f)

2017 ◽  
Vol 146 ◽  
pp. 04063 ◽  
Author(s):  
Abdelaziz Chebboubi ◽  
Olivier Serot ◽  
Grégoire Kessedjian ◽  
Olivier Litaize ◽  
Aurelien Blanc ◽  
...  
Keyword(s):  
Kinetic Energy ◽  
Theoretical Investigation ◽  
Fission Fragment ◽  
Mass Region ◽  
Energy Distributions ◽  
Fragment Kinetic Energy ◽  
Kinetic Energy Distributions

Fission Fragment Yield, Cross Section and Prompt Neutron and Gamma Emission Data from Actinide Isotopes

2014 ◽  
Vol 119 ◽  
pp. 38-41 ◽  
Author(s):  
F.-J. Hambsch ◽  
S. Oberstedt ◽  
A. Al-Adili ◽  
T. Brys ◽  
R. Billnert ◽  
...  
Keyword(s):  
Cross Section ◽  
Fission Fragment ◽  
Prompt Neutron ◽  
Gamma Emission ◽  
Emission Data ◽  
Fragment Yield

scholarly journals Three Exit Channels in the Fission of 235U(n, f)

1987 ◽  
Vol 42 (8) ◽  
pp. 786-790 ◽  
Author(s):  
H.-H. Knitter ◽  
F.-J. Hambsch ◽  
C. Budtz-Jørgensen ◽  
J. P. Theobald
Keyword(s):  
Kinetic Energy ◽  
Coordinate System ◽  
Thermal Neutron ◽  
Fission Fragment ◽  
Channel Model ◽  
Total Kinetic Energy ◽  
Fragment Mass ◽  
Theoretical Predictions ◽  
Induced Fission ◽  
Fragment Yield

A formula for the fission fragment yield area in the coordinate system of the fragment total kinetic energy and of the fragment mass is presented. It was deduced along the lines of the multiexit- channel model of fission elaborated by Brosa, Grossmann and Müller. This formula was fitted to the fragment mass-, average total kinetic energy-, and variance distributions of the thermal neutron induced fission of 235U. The obtained parameters are compared with the theoretical predictions. Further improvements of the fragment yield representation are discussed.

Analysis of Mass Distribution of Fission Fragment in Superheavy Mass Region

2009 ◽  
Author(s):  
Y. Aritomo ◽  
Sun-Chan Jeong ◽  
Yutaka Utsuno ◽  
Tohru Motobayashi ◽  
Angela Bracco
Keyword(s):  
Mass Distribution ◽  
Fission Fragment ◽  
Mass Region

Fragment yield distribution and the influence of neutron composition and excitation energy in multifragmentation reactions

2005 ◽  
Vol 71 (2) ◽  
Author(s):  
D. V. Shetty ◽  
A. S. Botvina ◽  
S. J. Yennello ◽  
G. A. Souliotis ◽  
E. Bell ◽  
...  
Keyword(s):  
Excitation Energy ◽  
Yield Distribution ◽  
Fragment Yield
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