PT Journal
AU n_TOF Collaboration (Karadimos, Dea
   Domingo-Pardo, C
   Tain, JL
TI Neutron-induced fission cross section of U-234 measured at the CERN n_TOF facility
SO Physical Review C
JI Phys. Rev. C
PY 2014
BP 044606
EP 11pp
VL 89
IS 4
DI 10.1103/PhysRevC.89.044606
LA English
AB The neutron-induced fission cross section of U-234 has been measured at the CERN n_TOF facility relative to the standard fission cross section of U-235 from 20 keV to 1.4 MeV and of U-238 from 1.4 to 200 MeV. A fast ionization chamber (FIC) was used as a fission fragment detector with a detection efficiency of no less than 97%. The high instantaneous flux and the low background characterizing the n_TOF facility resulted in wide-energy-range data (0.02 to 200 MeV), with high energy resolution, high statistics, and systematic uncertainties bellow 3%. Previous investigations around the energy of the fission threshold revealed structures attributed to beta-vibrational levels, which have been confirmed by the present measurements. Theoretical calculations have been performed, employing the TALYS code with model parameters tuned to fairly reproduce the experimental data.
ER