2007/05/16 by Andrey N. Smirnov, A. N. Smirnov, O. I. Batenkov +17
Engineering · Physics and Astronomy · #FOS: Physical sciences #Nuclear Experiment (nucl-ex) #Nuclear Physics and Applications #Nuclear physics research studies #Nuclear reactor physics and engineering #nucl-ex
paper · pdf · doi:10.48550/arxiv.0705.2387
4 pages, 3 figures, 2 tables, only pdf file, to be published in Proc. Int. Conf. on Nucl. Data for Sci. and Technology (ND2007), Nice, France, April 22-27, 2007
openalex publication_date 2007/05/16 · arxiv created 2007/05/21 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Neutron- and proton-induced fission cross-sections of separated isotopes of tungsten (182W, 183W, 184W, and 186W) and 181Ta 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) using quasi-monoenergetic neutrons from the 7Li(p,n) reaction and at the proton beams of The Svedberg Laboratory (TSL), Uppsala University (Uppsala, Sweden). The results are compared with predictions by the CEM03.01 event generator, as well as with the recent data for nuclei in the lead-bismuth region. The effect of "compound nucleus" in the intermediate energy region is discussed, displaying in exponential dependence of nucleon-induced fission cross-sections on the parameter Z2/A of the composite system (projectile+target nucleus), and in other characteristics of the fission process for which parameter Z2/A plays a role similar to the one of the usual liquid-drop parameter Z2/A of compound nuclei.