Abstract
The ionization yield for various gases has been examined utilizing the lateral surface of a single graphite whisker as the ionizer. The process of ion formation at or near the inert-type surface has been compared with data from a platinum wire ionizer. The dependence of ion yield upon applied voltage has been obtained and plotted for a range of values from 7.5 to 20 kV. A series of gases were examined which provided a range of values for the parameters of interest such as ionization potential. The gases studied included helium, ammonia, carbon monoxide, carbon dioxide, sulfur dioxide, methane, and ethylene.
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Schedule a callMore From: Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films
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