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U.S. Department of Energy
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AN ELECTRON MULTIPLIER AS A DETECTOR FOR A SURFACE IONIZATION MASS SPECTROMETER--DESIGN

Technical Report ·
DOI:https://doi.org/10.2172/4159494· OSTI ID:4159494
A description of a 14-stage electron multiplier for use amplifying the detector signals in a surface ionization mass spectrometer is given. The system can either measure the multiplier anode current or count the anode pulses. Pulse counting may be used for- signal currents in the range from lO/sup -13/ to 10/sup -18/ amp. The range of the normal electrometer circuit is extended by the electron multiplier so that it measures currents from l0/sup -10/ to 10/sup -15/ amp with a fast response. (auth)
Research Organization:
Du Pont de Nemours (E. I.) & Co. Savannah River Lab., Aiken, S.C.
NSA Number:
NSA-15-001514
OSTI ID:
4159494
Report Number(s):
DP-498
Country of Publication:
United States
Language:
English