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A SEARCH FOR HIGH ENERGY COSMIC GAMMA RAYS IN EMULSIONS

Technical Report ·
OSTI ID:4806101

The possibility of employing nuclear emulsions as a detector for gamma radiation from celestial sources was tested in a balloon flight over Texas. An average downward flux of 0.27 photons/cm/sup 2/ sec steradian was found during ascent and descent of the balloon in a solid angle of 0.842 steradian. An upper limit to the flux of gamma rays at an altitude of between 3 and 4.5 gm/cm/sup 2/ was determined as 1.7 x 10/sup -2/ photons/cm/sup 2/ sec steradian. An upper limit to the albedo flux during ascent and descent is given by 2.5 x 10/sup -2/ photons/cm/sup 2/ sec steradian. The results on scanning time and scanning efficiency in Ilford G-5 emulsions were not too encouraging. (auth)

Research Organization:
Rochester, N.Y. Univ.
NSA Number:
NSA-16-012310
OSTI ID:
4806101
Report Number(s):
NYO-10126
Country of Publication:
United States
Language:
English

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