| タイトル | Calculations of cosmic-ray helium transport in shielding materials |
| 本文（外部サイト） | http://hdl.handle.net/2060/19940013193 |
| 著者（英） | Cucinotta, Francis A. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1993-11-01 |
| 言語 | eng |
| 内容記述 | The transport of galactic cosmic-ray helium nuclei and their secondaries through bulk shielding is considered using the straight-ahead approximation to the Boltzmann equation. A data base for nuclear interaction cross sections and secondary particle energy spectra for high-energy light-ion breakup is presented. The importance of the light ions H-2, H-3, and He-3 for cosmic-ray risk estimation is discussed, and the estimates of the fractional contribution to the neutron flux from helium interactions compared with other particle interactions are presented using a 1977 solar minimum cosmic-ray spectrum. |
| NASA分類 | SPACE RADIATION |
| レポートNO | 94N17666
NASA-TP-3354
L-17225
NAS 1.60:3354 |
| 権利 | No Copyright |
|
