A Photo-Current Suppressor Gauge for the Measurement of Very Low Pressures,
Abstract
An ionization gauge has been designed which removes the low pressure limitation due to x-rays found in conventional ionization gauges while maintaining a comparable sensitivity. In this gauge, an additional electrode establishes an electric field which repels photo-electrons ejected from the ion collector. A similar photo-current from the suppressor grid is prevented by shielding this electrode from the x-rays. Preliminary experimental results have verified the suppression of photo-currents; pressures as low as 2 x 10 to the minus 12th power Torr have been measured. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1962
- Accession Number
- AD0611007
Entities
People
- W. C. Schuemann
Organizations
- University of Illinois Urbana–Champaign