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CHARGE SPECTRUM, MEAN FREE PATHS, AND FLUX OF HEAVY PRIMARY COSMIC RAYS AT THE TOP OF THE ATMOSPHERE

Journal Article · · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
BS>This investigation is restricted to primary cosmic rays of nuclear charges equal to or greater than ten at the geomagnetic latitude of 41 degrees north. Data were obtained from thick emulsions exposed at high altitudes over Texas. The flux, extrapolated to the top of the atmosphere, was found to be 2.65 plus or minus 0.3 particles/m/sup 2/ sec sterad. The distribution histogram for the charge spectrum is included. The attenuation meam free paths for three groups were 28.5 plus or minus 26, respectively. (auth)
Research Organization:
Southern Illinois Univ., Carbondale
NSA Number:
NSA-12-005429
OSTI ID:
4333949
Journal Information:
Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 109; ISSN PHRVA
Country of Publication:
Country unknown/Code not available
Language:
English