Publication Date:
2019-06-28
Description:
A quadrupole mass spectrometer has been utilized to study active discharges containing Cs vapor. Production of positive ions by electron impact within the mass spectrometer and subsequent secondary electron emission from cesiated surfaces produced spurious or pseudonegative ion signals which interfered with attempts to sample negative ions from the plasma. These effects may also occur in other gas discharge systems.
Keywords:
INSTRUMENTATION AND PHOTOGRAPHY
Type:
Journal of Applied Physics; 51; Dec. 198
Format:
text
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