| タイトル | Reversal electron attachment ionizer for detection of trace species |
| 本文（外部サイト） | http://hdl.handle.net/2060/19890019424 |
| 著者（英） | Chutjian, Ara; Bernius, Mark T. |
| 著者所属（英） | NASA Pasadena Office |
| 発行日 | 1989-06-05 |
| 言語 | eng |
| 内容記述 | An in-line reversal electron, high-current ionizer capable of focusing a beam of electrons to a reversal region and executing a reversal of the electrons, such that the electrons possess zero kinetic energy at the point of reversal, may be used to produce both negative and positive ions. A sample gas is introduced at the point of electron reversal for low energy electron-(sample gas) molecule attachment with high efficiency. The attachment process produces negative ions from the sample gas, which includes species present in trace (minute) amounts. These ions are extracted efficiently and directed to a mass analyzer where they may be detected and identified. The generation and detection of positive ions is accomplished in a similar fashion with minimal adjustment to potentials applied to the apparatus. |
| NASA分類 | INSTRUMENTATION AND PHOTOGRAPHY |
| レポートNO | 89N28795
NAS 1.71:NPO-17596-1-CU |
| 権利 | No Copyright |
