6533b854fe1ef96bd12af2f4
RESEARCH PRODUCT
Fission product yields at intermediate energy
O. I. OsetrovW. H. TrzaskaA. A. AleksandrovV. A. RubchenyaAndrey KuznetsovV. G. LyapinAri JokinenA.v. EvseninJ. ÄYstöPeter DendoovenJ. C. WangD. N. VakhtinYu. E. PenionzhkevichS. HankonenS. V. KhlebnikovG. P. Tiourinsubject
Nuclear physicsNuclear fission productFission productsCold fissionCluster decayFissionChemistryNeutron emissionIsotopes of samariumNuclear TheoryFission product yieldNuclear Experimentdescription
The results of experimental and theoretical studies of fission product yields in proton-induced fission of 238U are presented. The yields of neutron-rich Ni, Cu, Zn, Ga and Ge—isotopes were measured by 25 MeV protons and the ion guide-based isotope separator technique. The pre-neutron emission fragment mass distributions were measured by protons at energies Ep=20, 35, 50 and 60 MeV using time-of-flight method. The results indicate enhancement for superasymmetric mass division at intermediate excitation energy of the fissioning nucleus. A model calculation of fission products yields for fission of 238U by protons and neutrons is presented which predicts the formation cross sections for neutron-rich fission products. The influences of nuclear shells, odd-even effects and charge polarization are included in model description.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-01-01 | AIP Conference Proceedings |