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Radio frequency source of a weakly expanding wedge-shaped xenon ion beam for contactless removal of large-sized space debris objectsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 6 февраля 2020 г.
- Авторы: Balashov V.V., Cherkasova M.V., Kruglov K.I., Kudriavtsev A.V., Masherov P.E., Mogulkin A.I., Obukhov V.A., Riaby V.A., Svotina V.V.
- Журнал: Review of Scientific Instruments
- Том: 88
- Номер: 083304
- Год издания: 2017
- Издательство: AIP Publishing
- Местоположение издательства: United States
- Первая страница: 083304-1
- Последняя страница: 083304-5
- DOI: 10.1063/1.4998247
- Аннотация: A theoretical-experimental research has been carried out to determine the characteristics of a radio frequency (RF) ion source for the generation of a weakly expanding wedge-shaped xenon ion beam. Such ion beam geometry is of interest as a prototype of an on-board ion injector for contactless “ion shepherding” by service spacecraft to remove large space debris objects from geostationary orbits. The wedge shape of the ion beam increases its range. The device described herein comprises an inductive gas discharge chamber and a slit-type three-electrode ion extraction grid (IEG) unit. Calculations of accelerating cell geometries and ion trajectories determined the dependence of beam expansion halfangle on normalized perveance based on the measurements of the spatial distributions of the xenon plasma parameters at the IEG entrance for a xenon flow rate q = 0.2 mg/s and an incident RF power Pin = 250 W at a driving frequency f = 2 MHz. Experimental studies showed that the ion beam, circular at the IEG exit, accepted the elliptical form at the distance of 580 mm with half-angle of beam expansion across IEG slits about 2°–3° and close to 0° along them. Thus, the obtained result proved the possibility of creating a new-generation on-board ion injector that could be used in spacecrafts for removal of debris.
- Добавил в систему: Рябый Валентин Анатольевич