Accession Number : AD0701248

Title :   THE STUDY OF THE LOW-ENERGY SOLAR AND CELESTIAL GAMMA RADIATION.

Descriptive Note : Final rept. 18 Mar-17 Sep 69,

Corporate Author : SMITHSONIAN ASTROPHYSICAL OBSERVATORY CAMBRIDGE MASS

Personal Author(s) : Helmken ,Henry F.

Report Date : OCT 1969

Pagination or Media Count : 8

Abstract : Theoretical and design studies were conducted on gamma-radiation detectors for the energy range from 0.5 to 15 Mev. A NaI crystal detector and a gas Cerenkov detector were selected and used to obtain the gamma-ray growth curve from sea level to 125,000 ft. (Author)

Descriptors :   (*COSMIC RAYS, *GAMMA COUNTERS), SOLAR RADIATION, LINE SPECTRA, CONTINUOUS SPECTRA, CERENKOV RADIATION, CRYSTAL COUNTERS, SCINTILLATION COUNTERS

Subject Categories : Astrophysics
      Atmospheric Physics
      Nuclear Instrumentation

Distribution Statement : APPROVED FOR PUBLIC RELEASE