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Author Frazer, J. W. ♦ Burns, R. P. ♦ Barton, G. W.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher American Institute of Physics (AIP)
Language English
Subject Keyword INSTRUMENTS ♦ BACKGROUND ♦ CARBONYLS ♦ IONIZATION ♦ IONS ♦ MASS SPECTROMETERS ♦ MEASURED VALUES ♦ POLYMERS ♦ POTASSIUM ♦ PREPARATION ♦ SENSITIVITY ♦ SOLIDS ♦ SURFACES ♦ TANTALUM ♦ TUNGSTEN ♦ VAPORS ♦ WIRES
Abstract A problem encountered in high-sensitivity solidsample mass spectroscopy when using a multiple filament ionization source in the presence of a number of unusual background peaks. Investigators think that polymer ions of potassium cause the most important of these peaks. A method is described for producing tungsten filaments from which it has been possible to detect these ions. The basic method consists of decomposing tungsten hexacarbonyl vapor on a tantalum blank at a temperature high enough to vaporize the tantalum backing from the deposited tungsten. Tungsten filaments containing less than 20% residual tantalum are produced by this means. (A.C.)
ISSN 00346748
Educational Use Research
Learning Resource Type Article
Publisher Date 1959-01-01
Publisher Department Univ. of California, Livermore
Journal Review of Scientific Instruments
Volume Number 30
Issue Number 5
Organization Univ. of California, Livermore


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