Trapping of rare gases during the condensation of solids |
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| Authors: | Masahiko Honda M Ozima Y Nakada T Onaka |
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| Institution: | 1. Geophysical Institute, University of Tokyo, Bunkyo-ku, Tokyo 113 Japan;2. Department of Astronomy, University of Tokyo, Bunkyo-ku, Tokyo 113 Japan |
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| Abstract: | Rare gas trapping during crystallization from vapor phases of (1) CdTe, (2) Zn, (3) Mg and (4) Fe3O4 has been studied. Samples were deposited as very fine crystals (about several hundred angströms) in ambient Ar atmospheres of various pressures. It was found that the amount of Ar trapped in the samples was proportional to the ambient Ar pressure. Stepheating degassing of the crystals showed that Ar was rather loosely trapped and released at relatively low temperatures. However, on a simple mechanical compaction of the crystal powder the retentivity of Ar was considerably enhanced. |
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