| タイトル | Time-resolved double-probe study in a He-Hg afterglow plasma |
| 著者（英） | Shay, T.; Kano, H.; Collins, G. J.; Hattori, S. |
| 著者所属（英） | Nagoya Univ.|Colorado State Univ. |
| 発行日 | 1977-11-01 |
| 言語 | eng |
| 内容記述 | An experimental double-probe technique is described which allows the He(+) ion density to be measured directly as a function of time in the afterglow of a helium-metal-vapor discharge. As an application example, two CW laser transitions of the He-Hg(+) laser at 6150 and 7944 A are considered which both arise from excited 7p (2) P terms of Hg II. The time-resolved double-probe technique is used to measure the destruction rate of the He(+) ion density, which is then compared with the spontaneous-emission decay rate for 7p (2) P terms of Hg II. The results obtained show unambiguously and directly that the dominant excitation process for the two transitions considered is a charge-transfer collisional reaction of the form He(+) plus Hg yields He plus metastable Hg(+) plus the energy defect for this reaction. It is noted that the time-resolved double-probe technique may provide a simple method for measuring ion mobilities in a multi-ion plasma. |
| NASA分類 | LASERS AND MASERS |
| レポートNO | 78A15838 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/434532 |
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