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PRIMARY COSMIC-RAY $alpha$-PARTICLES OVER NORTH AMERICA

Journal Article · · J. Phys. Soc. Japan
OSTI ID:4754522
In high-altitude balloon flights over North America, nuclear emulsions were used to study the characteristics of the primary helium nuclei in cosmic radiation. On Feb. 8, 1959, at 41 deg N the helium-nuclei flux was found to be 76 plus or minus 4 particles/m/sup 2//sterad/sec. On Aug. 3, 1958, it was 88 plus or minus 8 particles/m/sup 2//sterad/sec at 49 deg N and 135 plus or minus 8 particles/m/sup 2// sterad/sec at 61 deg N. (A.G.W.)
Research Organization:
Washington Univ., St. Louis
NSA Number:
NSA-17-013008
OSTI ID:
4754522
Journal Information:
J. Phys. Soc. Japan, Journal Name: J. Phys. Soc. Japan Vol. Vol: 17: Suppl. A-III
Country of Publication:
Country unknown/Code not available
Language:
English

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