SIMULTANEOUS MEASUREMENT OF TWO ION CURRENTS BY PULSE COUNTING IN A MASS SPECTROMETER
Technical Report
·
OSTI ID:4720024
Simultaneous measurement by pulse counting two ion beams with a mass separation of DELTA M/M as small as 1/250 was accomplished in a 30-in.-radius double-focusing mass spectrometer of the Dempster type. Positively charged ions are produced by thermal ionization on a hot filament and are detected by two heavily shielded electrostatic electron multipliers. The disadvantage of multiplier size is overcome by using electrostatic deflecting plates to increase the dispersion between two resolved beams by deflecting each beam in opposite directions from the focal plane of the magnet into its multiplier detector. (auth)
- Research Organization:
- Knolls Atomic Power Lab., Schenectady, N.Y.
- DOE Contract Number:
- W-31-109-ENG-52
- NSA Number:
- NSA-17-010908
- OSTI ID:
- 4720024
- Report Number(s):
- TID-15865
- Country of Publication:
- United States
- Language:
- English
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