Accession Number : AD0742226

Title :   OV1-19 Isodose Contours at Various Altitudes.

Descriptive Note : Interim technical rept. Mar 69-Aug 71,

Corporate Author : AIR FORCE WEAPONS LAB KIRTLAND AFB N MEX

Personal Author(s) : Cervini,John T.

Report Date : FEB 1972

Pagination or Media Count : 41

Abstract : Data collected from the OV1-19 satellite have been reduced, merged, and analyzed to provide dose rares measured by three tissue-equivalent ionization chambers (TEICs) behind various shielding materials. The shields consist of 0.26 grams per square centimeter of shonka plastic, 5.0 grams per square centimeter of lucite, and 12.0 grams per square centimeter of tungsten. Isodose contours as a function of geodetic latitude and longitude have been plotted for altitudes of 270, 510, 1000, 2000, and 3000 NM. These contours were obtained from data collected for 97 revolutions of the satellite over an 11-month lifetime. A time history for all three TEICs is plotted for one specific revolution of data, showing typical sensor behavior for a 4-hour period as the satellite passes through the Van Allen belts. A summary of the effects of solar flare radiation is also presented. (Author)

Descriptors :   (*VAN ALLEN RADIATION BELT, RADIATION HAZARDS), (*SPACE ENVIRONMENTS, SCIENTIFIC SATELLITES), COSMIC RAYS, SOLAR RADIATION, SHIELDING, DOSE RATE, CURVE FITTING, GRAPHICS, SOLAR FLARES

Subject Categories : Atmospheric Physics
      Radiobiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE