Shielding calculations for 230-MeV protons using the LAHET code system
- Univ. of Wisconsin, Madison, WI (United States). Dept. of Medical Physics
- Los Alamos National Lab., NM (United States)
Shielding related calculations were performed for 230-MeV protons incident upon a stopping-length iron target using the LAHET code system (LCS). Secondary neutrons and photons, produced by proton interactions with the target nuclei, were transported through a spherical concrete shield in which absorbed dose and dose equivalent tallies were produced and attenuation parameters deduced. Comparing calculated results with measurements performed with a similar target, beam, and shielding geometry, the dose equivalent production term is double the measured value. The LCS overestimates measured attenuation values at 0, 22, and 45 deg while correctly predicting the attenuation length at 90 deg. Comparison of LCS results with HETC calculations and analytical methods indicates that LCS better estimates the attenuation length and dose equivalent production.
- OSTI ID:
- 218508
- Journal Information:
- Nuclear Science and Engineering, Journal Name: Nuclear Science and Engineering Journal Issue: 2 Vol. 122; ISSN NSENAO; ISSN 0029-5639
- Country of Publication:
- United States
- Language:
- English
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