  Neutron- and proton-induced fission cross-sections of separated isotopes of
tungsten (182W, 183W, 184W, and 186W) and natural tungsten relative to 209Bi
have been measured in the incident nucleon energy region 50-200 MeV using
fission chambers based on thin-film breakdown counters (TFBC) at
quasi-monoenergetic neutrons from the 7Li(p,n) reaction and at the proton beams
of The Svedberg Laboratory (TSL), Uppsala University (Uppsala, Sweden). The
preliminary experimental data are presented in comparison with the recent data
for nuclei in the lead-bismuth region, as well as with predictions by the
CEM03.01 event generator.
