Accession Number : ADA319181

Title :   Calibration of Philips Ion Gauge,

Corporate Author : TECHNICAL INFORMATION SERVICE (AEC) OAK RIDGE TN

Personal Author(s) : Tolmie, J. R.

PDF Url : ADA319181

Report Date : 25 MAR 1944

Pagination or Media Count : 11

Abstract : Previously issued Vac. Special Reports No. 18 and 19, dealing with the Philips type ion gauges, do not contain calibration curves of the gauges now in actual use, for no particular unit had been agreed upon as a standard at that time. This report accompanies a set of calibration curves of the standard gauge. The calibration data shown on the accompanying charts were obtained by employing an experimental layout as indicated in schematic drawing No. X-1147. Both of the Philips ion gauges were of the conventional type. These gauges are comprised of a 1-in. diameter ring type of anode, which is located coplanar with and midway between 2 2-1/2 in. square copper cathodes, which are separated by an interval of 1/2 in. The D.P.I. triode type of ionization gauge, which was employed during the tests, was in turn very carefully calibrated against a number of D.P.I. and Western Electric Company ionization gauges.

Descriptors :   *CALIBRATION, *IONIZATION GAGES, CATHODES, COPPER, RINGS, ENGINEERING DRAWINGS, SCHEMATIC DIAGRAMS, TRIODES, ANODES.

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE