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U.S. Department of Energy
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A NIER TYPE MASS SPECTROMETER OF HIGH SENSITIVITY

Technical Report ·
OSTI ID:4286299
A 12-inch radius of curvature Nier-type mass spectrometer utilizin a surface ionization source and an electron multiplier detector was constructed. This machine was built specifically to mass-analyze microgram samples of uranium containing less than 100 parts of U/sup 236/ per million parts of U/sup 235/. Using a 20-stage electron multiplier, ion beam currents as low as 10/sup -19/ amp can be measured. A complete description of the instrument and its performance is given together with a discussion of its principale limitations. (auth)
Research Organization:
Knolls Atomic Power Lab., Schenectady, N.Y.
DOE Contract Number:
W-31-109-ENG-52
NSA Number:
NSA-13-009933
OSTI ID:
4286299
Report Number(s):
KAPL-873
Country of Publication:
United States
Language:
English

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