Accession Number:

AD0489564

Title:

EFFECTS OF GAMMAS AND NEUTRONS ON LEAD SELENIDE DETECTORS

Descriptive Note:

Technical rept. Feb-May 1966

Corporate Author:

AIR FORCE WEAPONS LAB KIRTLAND AFB NM

Personal Author(s):

Report Date:

1966-09-01

Pagination or Media Count:

26.0

Abstract:

Objectives of this program were to determine the effect of neutrons from a near nuclear burst on infrared systems. A cooled lead selenide detector -80 C was radiated, using the fast burst reactor at White Sands Missile Range to provide a neutron flux of approximately 10 to the 13th power neutronssq. cm. A series of six bursts was conducted over a 2-day period. Results show a large output from the detector at burst time. The recovery time from this pulse is on the order of from 3 to 5 milliseconds. This is approximately 100 times the burst pulse width. There is some indication that a period of approximately 100-150 milliseconds is required before postburst operation of the detector is exactly equivalent to the preburst operation. Recalibration of the detector after the burst series indicated a very small loss in sensitivity. In general, the postburst noise and resistance figures were slightly higher than the preburst values.

Subject Categories:

  • Infrared Detection and Detectors
  • Fission Reactor Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE