| Автор | J P Merrison |
| Автор | M Charlton |
| Автор | B I Deutch |
| Автор | L V Jorgensen |
| Дата выпуска | 1992-03-23 |
| dc.description | The field assisted moderation of positrons (e<sup>+</sup>) has been achieved by charging the surfaces of argon and krypton rare gas solid (RGS) films. Following deposition the RGS surface was coated with a thin layer of molecular oxygen which serves to trap some of the charge which was then applied by low energy electron bombardment. Energy spectra of both the low energy e<sup>+</sup>s and secondary electrons emitted from a charged argon surface were found to be consistent with the production of a surface potential of approximately -20 V. This resulted in a threefold enhancement of the slow e<sup>+</sup> yield and a reduction of around a factor of five in the emission of secondary electrons. Electron bombardment of RGS films not exposed to oxygen showed no such surface charge effects. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Field assisted positron moderation by surface charging of rare gas solids |
| Тип | lett |
| DOI | 10.1088/0953-8984/4/12/003 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 4 |
| Первая страница | L207 |
| Последняя страница | L212 |
| Аффилиация | J P Merrison; Dept. of Phys. & Astron., Univ. Coll., London, UK |
| Аффилиация | M Charlton; Dept. of Phys. & Astron., Univ. Coll., London, UK |
| Аффилиация | B I Deutch; Dept. of Phys. & Astron., Univ. Coll., London, UK |
| Аффилиация | L V Jorgensen; Dept. of Phys. & Astron., Univ. Coll., London, UK |
| Выпуск | 12 |
