Calculations for Proton-Induced Reactions Below 250 MeV on {sup 208}Pb and {sup 209}Bi Targets

Journal Article · Wed Jan 15 04:00:00 EST 2003 · Nuclear Science and Engineering

OSTI ID:20804832

Zhengjun, Zhang ^[1]; Xiuquan, Sun ^[1]; Chonghai, Cai ^[2]; Qingbiao, Shen ^[3]; Yinlu, Han ^[3]

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1. Northwest University (China)
2. Nankai University (China)
3. China Institute of Atomic Energy (China)

Reactions of protons induced on {sup 208}Pb and {sup 209}Bi, the important target materials in accelerator- driven systems, are studied. First, a set of proton optical model potential parameters for heavy elements is obtained up to 500 MeV. Theoretical total reaction cross sections and elastic scattering angular distributions determined by this set of optical model parameters reproduce the experimental data well. Second, several nuclear reaction models (optical model, intranuclear cascade mechanism for nucleon emission, preequilibrium theory based on the exciton model, evaporation model, and the direct reaction theory) are extended for medium energy, and the various reactions of p + {sup 208}Pb and {sup 209}Bi are calculated in the energy region from threshold up to 250 MeV. In particular, the inclusive cross sections of six emission particles and the production cross sections of all residual nuclei, as well as their energy spectra, are calculated and discussed.

• OSTI ID: 20804832
• Journal Information: Nuclear Science and Engineering, Journal Name: Nuclear Science and Engineering Journal Issue: 1 Vol. 143; ISSN NSENAO; ISSN 0029-5639
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
ANGULAR DISTRIBUTION
BISMUTH 209
CROSS SECTIONS
DIRECT REACTIONS
ELASTIC SCATTERING
EVAPORATION MODEL
EXCITON MODEL
LEAD 208
MEV RANGE 100-1000
NUCLEAR CASCADES
OPTICAL MODELS
PROTONS