タイトル | Slow-Positron Generator For Studying Polymer Films |
著者(英) | Singh, Jag J.; Eftekhari, Abe; St. Clair, Terry L. |
著者所属(英) | NASA Langley Research Center |
発行日 | 1992-10-01 |
言語 | eng |
内容記述 | Aspects of molecular structures probed by positron-annihilation spectroscopy (PAS). Slow-positron-beam generator suitable for PAS measurements in thin polymer films. Includes Na22 source of positrons and two moderators made of well-annealed tungsten foil. With proper choice of voltage, positrons emitted by inward-facing surfaces of moderators made to stop in polymer films tested. |
NASA分類 | PHYSICAL SCIENCES |
レポートNO | 92B10590 LAR-14250 |
権利 | No Copyright |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/331929 |