STUDY OF ELECTRON FOCUSING BY NON-LINEAR SPIRALS

Abstract

IMAGE-TUBE SYSTEMS WITH SPIRAL OPTICS WERE INVESTIGATED IN THE DEMOUNTABLE. All tubes are imaging a plane cathode (2-1/2'' diameter) on a plane screen. A first optical system uses only one spiral-lens section and produces an essentially fixed mangification of 0.67. A second refined tube uses a tandem spiral-lens, giving it a capability for ''Zoom-lens'' operation. A range of magnification of 4:1 is reported. This occurs in three distinct conditions of 4/3, 2/3, and 1/3 which are practically noncontingent. Several of the test tubes have employed spirals coated by a thin protective film, having an electronic conductivity of 10 to the 10th power ohms per square. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 31, 1962
Accession Number
AD0288512

Entities

People

  • Kurt Schlesinger

Organizations

  • General Electric

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Conductivity
  • Diameters
  • Electrons
  • Image Tubes
  • Images
  • Magnification
  • Physical Properties

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Electronics Engineering
  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics