Progress Report for the Period August and September 1954

Abstract

Investigation of the causes of regeneration in the high-current photomultiplier at high output levels is continuing. 1 The visible light observed around the collector wires has been analyzed with a spectrograph and the spectrum has been identified as that of the arc discharge of hydrogen. The hydrogen is probably introduced during the cleaning process, when the metal parts are hydrogen fired, and apparently is not all baked out before the tube is sealed. Attempts will be made to eliminate more hydrogen in subsequent tubes.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1954
Accession Number
AD1220874

Entities

People

  • A C Graves
  • B. E. Watt
  • N. E. Bradbury
  • N. H. Smith
  • W. E. Ogle

Organizations

  • Los Alamos National Laboratory
  • Office of Naval Research
  • United States Naval Research Laboratory

Tags

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Materials Science and Engineering.
  • Spectroscopy.