Аннотация
Emission of positively charged ions from a plasma emitter irradiated by a counterpropagating electron beam is studied theoretically. A bipolar diode with a plasma emitter in which the ion temperature is lower than the electron temperature and the counter electron flow is extracted from the ion collector is calculated in the one-dimensional model. An analog of Bohm’s criterion for ion emission in the presence of a counterpropagating electron beam is derived. The limiting density of the counterpropagating beam in a bipolar diode operating in the space-charge-limited-emission regime is calculated. The full set of boundary conditions on the plasma emitter surface that are required for operation of the high-current optics module in numerical codes used to simulate charged particle sources is formulated.
Язык оригинала | английский |
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Страницы (с-по) | 129-140 |
Число страниц | 12 |
Журнал | Plasma Physics Reports |
Том | 43 |
Номер выпуска | 2 |
DOI | |
Состояние | Опубликовано - 1 фев 2017 |