Impurity ion production in alkali ion sources

Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.1141187

Title:	Impurity ion production in alkali ion sources
Authors:	Hogan, M.J. Ong, P.P.
Issue Date:	1990
Citation:	Hogan, M.J., Ong, P.P. (1990). Impurity ion production in alkali ion sources. Review of Scientific Instruments 61 (4) : 1338-1339. ScholarBank@NUS Repository. https://doi.org/10.1063/1.1141187
Abstract:	It has long been known that new alkali ion sources utilizing thermionic emission from alkali aluminosilicates can achieve high percentages of the desired ion by a sufficiently long "burn-in." Observations are reported here of instances where increased impurity ion emission can reoccur and lead to possible measurement errors in experimental systems lacking mass spectrometers. The ratio of impurity K+ ions to Na+ ions from a burned-in Na2O·Al2O3· 2SiO2 source was measured to be 0.55.
Source Title:	Review of Scientific Instruments
URI:	http://scholarbank.nus.edu.sg/handle/10635/96888
ISSN:	00346748
DOI:	10.1063/1.1141187
Appears in Collections:	Staff Publications

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