Abstract
Double differential (n, α) reaction cross sections of 58Ni and natNi were measured for 4.2-6.5 MeV neutrons with energy resolution good enough to separate α-particles from the low-lying levels of residual nuclei by using a gridded ionization chamber. Angular distribution and excitation functions were derived for α0, α1 and αi≥2 components (α-particles to the ground level, the 1st level and levels higher than the 2nd level, respectively). The experimental results were compared with these obtained from calculation based on Hauser-Feshbach model employing the optical potential and the level density parameters derived to reproduce the experimental values of total, (n, p) and (n,α)cross sections. The calculation showed fair agreement with the experimental data while it underestimated the (n,α)cross section above 6 MeV.
Original language | English |
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Pages (from-to) | 851-856 |
Number of pages | 6 |
Journal | journal of nuclear science and technology |
Volume | 35 |
Issue number | 12 |
DOIs | |
Publication status | Published - 1998 Dec |
Keywords
- Alpha particles
- Angular distribution
- Double differential cross sections
- Excitation functions
- Experimental data
- Gridded ionization chamber
- Hauser-Feshbach calculation
- High energy resolution
- MeV range 01-10
- Neutrons
- Nickel 58
- Nickel nat
- Nuclear reactions
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Nuclear Energy and Engineering