Accession Number : ADA322452

Title :   Life Tests of Tungsten and Tantalum Filaments in Ion Gauges,

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

Personal Author(s) : Bush, W. E.

PDF Url : ADA322452

Report Date : 08 JAN 1944

Pagination or Media Count : 17

Abstract : This paper presents the results of an investigation carried on for the following purposes: (1) To determine the relative life of filaments when operated at low emission (low temperatures) as compared to those operated at high emission values. (2) To determine the nature of the dependence of life upon the initial diameter of the filament. (3) To determine the effect of varying concentrations of water vapor and air upon the life of the filaments. (4) To determine the relative life characteristics of tantalum as compared to tungsten.

Descriptors :   *FILAMENTS, *LIFE TESTS, *TANTALUM, *IONIZATION GAGES, *TUNGSTEN, EMISSION, LOW TEMPERATURE, CONCENTRATION(CHEMISTRY), WATER VAPOR.

Subject Categories : Inorganic Chemistry
      Physical Chemistry
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE