Dissipative effects in fission investigated with proton-on-lead reactions
Paper in proceeding, 2016
The complete kinematic measurement of the two fission fragments permitted us to investigate dissipative effects at large deformations, between the saddle-point and the corresponding scission configurations. Up to now, this kind of study has only been performed with fusionfission reactions using a limited number of observables, such as the mass distribution of the fission fragments or the neutron multiplicities. However, the large angular momenta gained by the compound nucleus could affect the conclusions drawn from such experiments. In this work, the use of spallation reactions, where the fissioning systems are produced with low angular momentum, small deformations and high excitation energies, favors the study of dissipation, and allowed us to define new observables, such as postscission neutron multiplicities and the neutron excess of the final fission fragments as a function of the atomic number of the fissioning system. These new observables are used to investigate the dissipation at large deformations.
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)
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
D. Ramos
Universidade de Santiagode Compostela
C. Rodriguez-Tajes
Grand Accélérateur National d'Ions Lourds (GANIL)
D. M. Rossi
Helmholtz
H. Simon
Helmholtz
J. Vargas
Universidade de Santiagode Compostela
B. Voss
Helmholtz
EPJ Web of Conferences
21016275 (ISSN) 2100014X (eISSN)
Vol. 117 Art. no. 08017- 080179788874381012 (ISBN)
Subject Categories
Subatomic Physics
DOI
10.1051/epjconf/201611708017
ISBN
9788874381012