Accession Number : AD0775987

Title :   Ionizing Noise in Infrared Sensors.

Descriptive Note : Instrumentation papers,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Vickers,Virgil E. ; Shepherd,Freeman D. , Jr. ; Burke,Edward A.

Report Date : 13 DEC 1973

Pagination or Media Count : 15

Abstract : A model is described for the effects of gamma-induced ionizing noise in infrared sensors, taking into account the incident gamma spectrum, both Compton events in the detector and secondary hot electrons from the metal surroundings, partial or total deposition of the initial hot electron energy, detector geometry, and preamplifier impulse response. The model as coded gives predicted pulse height distributions and, for threshold-gating type circumvention, predicted duty cycles; it indicates that detector volume should be minimized. Good agreement with experimental results is achieved. (Author)

Descriptors :   *Infrared detectors, *Radiation effects, Ionizing radiation, Gamma rays, Radiation hardening, Electron energy

Subject Categories : Electrical and Electronic Equipment
      Infrared Detection and Detectors
      Radioactiv, Radioactive Wastes & Fission Prod

Distribution Statement : APPROVED FOR PUBLIC RELEASE