Accession Number:

AD0611007

Title:

A Photo-Current Suppressor Gauge for the Measurement of Very Low Pressures,

Descriptive Note:

Corporate Author:

ILLINOIS UNIV URBANA COORDINATED SCIENCE LAB

Personal Author(s):

Report Date:

1962-10-01

Pagination or Media Count:

14.0

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

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE