THE RECOVERY OF COSMIC-RAY EMULSIONS FROM ROCKET AND SPACE PROBES
The first rocket-exposed emulsion was recovered September 1949, after exposure at 151 kin. A star population of 5420 plus or minus 1300 cc/sup -1/ day/sup -1/ was indicated, larger than shown in similar emulsions exposed by balloon (815 plus or minus 104 cc/sup -1/ day/sup -1/) in the stratosphere. The second recovery was effected from an Aerobee rocket that reached 128 km. The emulsion was indicative of a star prcduction rate of 4800 plus or minus 1000 cc/ sup -1/ day/sup -1/. The third recovery yielded a value of 1180 plus or minus 280 stars/cc/day, which was consistent with stratospheric measurements. Photomicrographs are shown of particle tracks in the developed emulsions flown in balloons and rockets. (B.O.G.)
- Research Organization:
- Ionospheric Physics Lab., Bedford, Mass.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-002046
- OSTI ID:
- 4135646
- Journal Information:
- Physics Today (U.S.), Journal Name: Physics Today (U.S.) Vol. Vol: 13, No. 10; ISSN PHTOA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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