Dissipative effects in fission investigated in complete kinematics measurements
Paper in proceeding, 2017
The study of dissipative effects in fission has been carried out with fusion-fission reactions by using a limited number of observables, such as the fission probabilities, the mass distribution of the fission fragments, or the neutron multiplicities. However, the large angular momenta gained by the compound nucleus in this kind of reaction could affect the conclusions drawn from such experiments. In this work, we propose to investigate the fission dynamics by the use of spallation reactions on 208Pb because the fissioning systems are produced with low angular momentum, small deformations, and high excitation energies, enhancing the dissipative effects. The complete kinematics measurements of the fission fragments and light-charged particles were performed by the use of the SOFIA setup combined with the inverse kinematics technique, allowing us for the first time a full indentification in atomic and mass number of the two fission fragments. These measurements permit us to define new fission observables for the investigation of the temperature and deformation dependencies of the dissipation parameter.
Author
J. L. Rodriguez-Sanchez
Universidade de Santiagode Compostela
J. Benlliure
Universidade de Santiagode Compostela
J. Taieb
The French Alternative Energies and Atomic Energy Commission (CEA)
D. Ramos
Universidade de Santiagode Compostela
H. Alvarez-Pol
Universidade de Santiagode Compostela
L. Audouin
Institut de Physique Nucleaire Orsay
Y. Ayyad
Universidade de Santiagode Compostela
G. Belier
The French Alternative Energies and Atomic Energy Commission (CEA)
G. Boutoux
The French Alternative Energies and Atomic Energy Commission (CEA)
E. Casarejos
University of Vigo
A. Chatillon
The French Alternative Energies and Atomic Energy Commission (CEA)
D. Cortina-Gil
Universidade de Santiagode Compostela
T. Gorbinet
The French Alternative Energies and Atomic Energy Commission (CEA)
Andreas Martin Heinz
Chalmers, Physics, Subatomic and Plasma Physics
A. Kelic-Heil
Helmholtz
B. Laurent
The French Alternative Energies and Atomic Energy Commission (CEA)
J. F. Martin
The French Alternative Energies and Atomic Energy Commission (CEA)
C. Paradela
Universidade de Santiagode Compostela
E. Pellereau
The French Alternative Energies and Atomic Energy Commission (CEA)
B. Pietras
Universidade de Santiagode Compostela
C. Rodriguez-Tajes
Grand Accélérateur National d'Ions Lourds (GANIL)
D. Rossi
Helmholtz
H. Simon
Helmholtz
J. Vargas
Universidade de Santiagode Compostela
B. Voss
Helmholtz
EPJ Web of Conferences
21016275 (ISSN) 2100014X (eISSN)
Vol. 146 04053978-275989020-0 (ISBN)
Subject Categories
Physical Sciences
DOI
10.1051/epjconf/201714604053
ISBN
978-275989020-0