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
Distribution Statement : APPROVED FOR PUBLIC RELEASE