Accession Number : AD0656627

Title :   ON THE ENERGY FLUXES OF LOW-ENERGY PROTONS AND POSITIVE IONS IN THE EARTH'S INNER RADIATION ZONE,

Corporate Author : IOWA UNIV IOWA CITY DEPT OF PHYSICS AND ASTRONOMY

Personal Author(s) : Frank,L. A. ; Swisher,R. L.

Report Date : JUN 1967

Pagination or Media Count : 15

Abstract : A search for the large energy fluxes of low-energy protons or positive ions (500 eV approximately equal, or < E approximately equal, or < 1 MeV) in the earth's inner radiation zone as previously reported by Freeman via the analysis of the responses of CdS crystals borne on the earth-satellite Injun 1 is reported here utilizing recent measurements of energy fluxes of protons and positive ions within the energy range 100 eV to 4.2 MeV with earth-satellites OGO 3 and Injun 4. These recent measurements provide upper limits for these proton and positive-ion energy fluxes which are less by factors of approximately 10 to 100 when compared to the Injun 1 observations during 1961. The upper limits reported here strongly indicate that large energy fluxes of low-energy protons or positive ions, approximately 50 ergs/cm squared-sec-sr, are not a feature of the inner radiation zone. (Author)

Descriptors :   (*MAGNETOSPHERE, VAN ALLEN RADIATION BELT), (*PROTONS, MAGNETOSPHERE), EXOSPHERE, IONS, AURORAE, RADIATION MEASURING INSTRUMENTS, SCIENTIFIC SATELLITES, UPPER ATMOSPHERE, COSMIC RAYS

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE