PORTABLE WIDE-RANGE RADIAC INSTRUMENT USING A SOLID-STATE ELECTROMETER.

Abstract

A wide range radiac instrument was developed to measure gamma radiation dose-rates from 1 mR/hr to 1000 R/hr in six linear ranges. The circuit is a hybrid type using an ion chamber for the four high ranges of 0-1, 10, 100, 1000 R/hr, and a G.M. tube, for the two low ranges 0-10, 100 mR/hr, contained in a detachable probe. An interesting feature of the circuit is the solid-state electrometer amplifier which uses insulated gate field-effect transistors in the input stage and its combination with a Geiger Mueller frisking probe to attain increased sensitivity. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1967
Accession Number
AD0651862

Entities

People

  • Gerald F. Healey

Organizations

  • United States Army Communications-Electronics Command

Tags

DTIC Thesaurus Topics

  • Amplifiers
  • Chambers
  • Dose Rate
  • Electrometers
  • Electronic Amplifier
  • Electronic Equipment
  • Electronics
  • Field Effect Transistors
  • Gamma Rays
  • Ionization Chambers
  • Radiation
  • Radiation Effects
  • Semiconductor Devices
  • Sensitivity
  • Solid State Electronics
  • Transistors

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Nuclear and Radiation Engineering.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems