Dissipative effects in fission investigated with proton-on-lead reactions
Paper i 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.
Författare
J. L. Rodriguez-Sanchez
Universidade de Santiagode Compostela
J. Benlliure
Universidade de Santiagode Compostela
J. Taieb
Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)
H. Alvarez-Pol
Universidade de Santiagode Compostela
L. Audouin
Institut de Physique Nucleaire Orsay
Y. Ayyad
Universidade de Santiagode Compostela
G. Belier
Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)
G. Boutoux
Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)
E. Casarejos
Universidad de Vigo
A. Chatillon
Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)
D. Cortina-Gil
Universidade de Santiagode Compostela
T. Gorbinet
Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)
Andreas Martin Heinz
Chalmers, Fysik, Subatomär fysik och plasmafysik
A. Kelic-Heil
Helmholtz
B. Laurent
Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)
J. F. Martin
Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)
C. Paradela
Universidade de Santiagode Compostela
E. Pellereau
Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (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)
Ämneskategorier
Subatomär fysik
DOI
10.1051/epjconf/201611708017
ISBN
9788874381012