| Автор | Benilov, M S |
| Автор | Cunha, M D |
| Автор | Naidis, G V |
| Дата выпуска | 2005-09-07 |
| dc.description | This work is concerned with investigation of the main features of current transfer to cathodes under conditions characteristic of metal halide (MH) lamps. It is found that the presence of MHs in the gas phase results in a small decrease of the cathode surface temperature and of the near-cathode voltage drop in the diffuse mode of current transfer; the range of stability of the diffuse mode expands. Effects caused by a variation of the work function of the cathode surface owing to formation of a monolayer of alkali metal atoms on the surface are studied for particular cases where the monolayer is composed of sodium or caesium. It is found that the formation of the sodium monolayer affects the diffuse mode of current transfer only moderately and in the same direction that the presence of metal atoms in the gas phase affects it. Formation of the caesium monolayer produces a dramatic effect: the cathode surface temperature decreases very strongly, the diffuse-mode current–voltage characteristic becomes N–S-shaped. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | 2005 IOP Publishing Ltd |
| Название | Modelling current transfer to cathodes in metal halide plasmas |
| Тип | paper |
| DOI | 10.1088/0022-3727/38/17/S16 |
| Electronic ISSN | 1361-6463 |
| Print ISSN | 0022-3727 |
| Журнал | Journal of Physics D: Applied Physics |
| Том | 38 |
| Первая страница | 3155 |
| Последняя страница | 3162 |
| Аффилиация | Benilov, M S; Departamento de Física, Universidade da Madeira, Largo do Município, 9000 Funchal, Portugal |
| Аффилиация | Cunha, M D; Departamento de Física, Universidade da Madeira, Largo do Município, 9000 Funchal, Portugal |
| Аффилиация | Naidis, G V; Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya 13/19, Moscow 125412, Russia |
| Выпуск | 17 |
