Accession Number : AD0132117

Title :   STUDY OF GEOMAGNETIC CUT-OFF ENERGIES AND TEMPORAL VARIATION OF THE PRIMARY COSMIC RADIATION

Corporate Author : IOWA STATE UNIV IOWA CITY

Personal Author(s) : MC DONALD, FRANK B.

Report Date : APR 1957

Pagination or Media Count : 1

Descriptors :   *ALPHA PARTICLES, *COSMIC RAYS, *NUCLEAR ENERGY LEVELS, SCINTILLATION COUNTERS, SPECTROGRAPHIC ANALYSIS.

Distribution Statement : APPROVED FOR PUBLIC RELEASE