APPLIED RESEARCH ON TECHNIQUES FOR LIGHT MODULATION DETECTION

Abstract

Techniques were developed for constructing a convergent gun traveling-wave phototube. The procedure for transferring the photocathode from the fabrication vessel to the tube body has been tested and found successful. If care is taken, no loss of photosensitivity occurs during the transfer. This transfer technique greatly simplifies the construction of the phototube by eliminating the need for cathode fabon and positioning assemblies inside the photocathode. The light modulator design and construction has been completed and tested. With 1.3 watts of input rf power at 3420 mc/sec, the modulation index is 0.1. This modulator, together with a superpressure Hg-arc light source, will be used to determine the rf characteristics of the phototubes.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1963
Accession Number
AD0404632

Entities

People

  • S. E. Sobottka

Organizations

  • Watkins-Johnson Company

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Construction
  • Electrical Measurement
  • Electron Tubes
  • Electronics
  • Electronics Laboratories
  • Equations
  • Light Sources
  • Measurement
  • Measuring Instruments
  • Modulators
  • New York
  • Optical Modulators
  • Phototubes
  • Refractive Index
  • Traveling Waves

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Electronics Engineering
  • Optical Physics and Photonics.