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Proton-induced fission cross sections on Pb-208 at high kinetic energies

J. L. Rodriguez-Sanchez ; J. Benlliure ; J. Taieb ; A. Chatillon ; C. Paradela ; Y. Ayyad ; G. Belier ; G. Boutoux ; E. Casarejos ; T. Gorbinet ; B. Laurent ; J. F. Martin ; E. Pellereau ; H. Alvarez-Pol ; L. Audouin ; D. Cortina-Gil ; Andreas Martin Heinz (Institutionen för fundamental fysik) ; A. Kelic-Heil ; B. Pietras ; D. Ramos ; C. Rodriguez-Tajes ; D. Rossi ; H. Simon ; L. Tassan-Got ; J. Vargas ; B. Voss
Physical Review C. Nuclear Physics (0556-2813). Vol. 90 (2014), 6, p. Art. no. 064606.
[Artikel, refereegranskad vetenskaplig]

Total fission cross sections of Pb-208 induced by protons have been determined at 370A, 500A, and 650A MeV. The experiment was performed at GSI Darmstadt where the combined use of the inverse kinematics technique with an efficient detection setup allowed us to determine these cross sections with an uncertainty below 6%. This result was achieved by an accurate beam selection and registration of both fission fragments in coincidence which were also clearly distinguished from other reaction channels. These data solve existing discrepancies between previous measurements, providing new values for the Prokofiev systematics. The data also allow us to investigate the fission process at high excitation energies and small deformations. In particular, some fundamental questions about fission dynamics have been addressed, which are related to dissipative and transient time effects.



Denna post skapades 2015-03-31. Senast ändrad 2015-03-31.
CPL Pubid: 214610

 

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Institutioner (Chalmers)

Institutionen för fundamental fysik (2005-2015)

Ämnesområden

Kärnfysik

Chalmers infrastruktur