| タイトル | Radon emanation from the moon - Spatial and temporal variability. |
| 著者（英） | Bjorkholm, P.; Gorenstein, P.; Golub, L. |
| 発行日 | 1973-05-01 |
| 言語 | eng |
| 内容記述 | Observations of Rn-222 and Po-210 on the lunar surface with the orbiting Apollo alpha particle spectrometer reveal a number of features in their spatial distribution and indicate the existence of time variations in lunar radon emission. Localized Rn-222 or Po-210 around the craters Aristarchus and Grimaldi and the edges of virtually all maria indicates time varying radon emission and suggests a correlation between alpha 'hot spots' and sites of transient optical events observed from the earth. In a gross sense, the slower variations of Rn-222 seem to correlate with the distribution of gamma activity. |
| NASA分類 | SPACE SCIENCES |
| レポートNO | 73A36033 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/456789 |
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