| タイトル | Comparisons between observed and predicted cosmogenic noble gases in lunar samples |
| 著者（英） | Reedy, R. C.; Hohenberg, C. M.; Podosek, F. A.; Shirck, J. R.; Marti, K. |
| 著者所属（英） | Washington Univ.|California Univ.|Los Alamos Scientific Lab. |
| 発行日 | 1978-01-01 |
| 言語 | eng |
| 内容記述 | Comparisons are made between cosmogenic production rates and isotopic ratios predicted on the basis of nuclear systematics with those observed in well-documented lunar samples. Although some significant differences are found, the agreement in general is surprisingly good. The predicted production rates for Ar-38 and Xe-126 agree reasonably well with observation but the predicted rate for Ne-21 appears to be too high; in most cases the predicted rate for Kr-83 agrees to within 50%, although some larger differences are apparent. There are some prominent cases in which predicted isotopic compositons differ from observation: Kr-78/Kr-83 trends in the wrong sense with the Zr/Sr ratio; Xe-124/Xe-126 is too large by about 13%; Xe-128/Xe-126 is too small by about 6%; Xe-130/Xe-126 is too low by 30-40%. |
| NASA分類 | LUNAR AND PLANETARY EXPLORATION |
| レポートNO | 79A39229 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/426732 |
