Accession Number : ADA295137

Title :   Develop and Fabricate a Radiation Dose Measurement System for Satellites.

Descriptive Note : Final rept. Jun 90-Nov 94,

Corporate Author : PANAMETRICS INC WALTHAM MA

Personal Author(s) : Morel, Paul R. ; Hanser, Frederick ; Belue, Jeff ; Cohen, Ram

PDF Url : ADA295137

Report Date : NOV 1994

Pagination or Media Count : 53

Abstract : A second generation Dosimeter has been designed to fulfill the need for accurate radiation dose measurements. Two identical Dosimeters, a flight unit and a backup unit, have been fabricated, tested and calibrated. The backup Dosimeter was integrated into the payload of the Advanced Photovoltaic and Electronic Experiments (APEX) satellite, as part of the Photovoltaic Array Space Power Plus Diagnostics (PASP Plus) experiment. APEX was launched shortly after 1430 UT on 8/3/94, with the initial orbit having apogee/perigee in the equatorial plane. The Dosimeter was turned on in Rev. 20, at about 0410 UT on 8/5/94. The initial turn on showed no anomalies, with the Dosimeter operating properly. The Dosimeter was then monitored for several days and proper operation has been verified.

Descriptors :   *RADIATION MEASURING INSTRUMENTS, *RADIATION DOSAGE, ELECTRONICS, EQUATORIAL REGIONS, MEASUREMENT, ACCURACY, FLIGHT, PHOTOVOLTAIC EFFECT, DOSIMETERS, APOGEE, PERIGEE.

Subject Categories : Nuclear Instrumentation
      Radioactiv, Radioactive Wastes & Fission Prod

Distribution Statement : APPROVED FOR PUBLIC RELEASE