Accession Number : ADA141134

Title :   Survey of Atmospheric Radiation Components for the Gamma and Cosmic Ray Astrophysics Branch of the Space Science Division of the Naval Research Laboratory.

Descriptive Note : Final rept. 15 Dec 82-15 Jan 84.

Corporate Author : SEVERN COMMUNICATIONS CORP SEVERNA PARK MD

PDF Url : ADA141134

Report Date : 15 Feb 1984

Pagination or Media Count : 10

Abstract : The objects of this study were: (1) Conduct a comprehensive literature search to determine the state-of-the-art knowledge of the effect of atmospheric radiation components on semiconductor materials from sea level to the top atmospheric layers. Emphasis shall be placed on particle propagation, radiation effects on semiconductor materials, and methods of calculating nuclear reaction cross sections. A comprehensive survey shall be made on the interactions between atmospheric components and cosmic rays and the secondary emissions and energy spectra produced. (2) Generate propagation algorithms to describe the penetration of primary cosmic rays into the atmosphere and the production of secondry emissions. (3) Calculate the energy loss rates in semiconductor materials for various cosmic ray components as a function of altitude, geomagnetic location, and zenith and azimuthal angles.

Descriptors :   *Astrophysics, Gamma rays, Cosmic rays, Radiation damage, Semiconductor devices, Charged particles, Wave propagation, Nuclear cross sections, Secondary emission, Algorithms

Subject Categories : Astrophysics
      Radioactiv, Radioactive Wastes & Fission Prod

Distribution Statement : APPROVED FOR PUBLIC RELEASE