STUDY OF PARTICLES WITH LONG PATH FROM POLONIUM SOURCES (in French)
In photographic emulsions exposed to sources of Po, Th, Pu/sup 239/, Ra, and U, to active deposits of thoron and actinon, and to RaD sources, in addition to the known radiations, particle tracks with an abnormally long path, more than 500 microns, were found. The origin of these radiations with the long path was studied by the photographic method. Nuclear emulsions were exposed to natural Po sources of I and 5 mc. Approximately 4 long tracks per 100 tracks were found. Attempts at identification led to the conclusion that it is not impossible that the particles with long path are protons caused by the nuclear reaction of alpha particles from the Po with boron contuined in the source. The longpath panticles found in active deposits of thoron and actinon can be attributed to protons emitted during the reaction of alpha particles from the source with the nitrogen of the air. (J.S.R.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-14-014181
- OSTI ID:
- 4189183
- Journal Information:
- Bull. soc. roy. Sci., Liege, Journal Name: Bull. soc. roy. Sci., Liege Vol. Vol: 29
- Country of Publication:
- Country unknown/Code not available
- Language:
- French
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