| タイトル | Gravitational effects on planetary neutron flux spectra |
| 著者（英） | O'Dell, R. D.; Brinkley, F. W., Jr.; Feldman, W. C.; Anderson, R. C.; Drake, D. M. |
| 著者所属（英） | Los Alamos National Lab. |
| 発行日 | 1989-01-10 |
| 言語 | eng |
| 内容記述 | The effects of gravity on the planetary neutron flux spectra for planet Mars, and the lifetime of the neutron, were investigated using a modified one-dimensional diffusion accelerated neutral-particle transport code, coupled with a multigroup cross-section library tailored specifically for Mars. The results showed the presence of a qualitatively new feature in planetary neutron leakage spectra in the form of a component of returning neutrons with kinetic energies less than the gravitational binding energy (0.132 eV for Mars). The net effect is an enhancement in flux at the lowest energies that is largest at and above the outermost layer of planetary matter. |
| NASA分類 | LUNAR AND PLANETARY EXPLORATION |
| レポートNO | 89A26517 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/365359 |
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