SOME REMARKS ON PHOTOGRAPHIC EMULSION (in French)
The canal along the track of an ionizing particle seen in a nuclear emulsion after development is illustrated. The track of an ionizing particle is longer in a wet emulsion than in a dry emulsion. This is explained by the fact that the stopping power of water is much less than that of the normal emulsion. The transformation of the gelatine into a substance soluble in water by the passage of an iorizing particle is then discussed. A tunnel'' containing the silver particles is forraed during development because the soluble gelatine is washed away. Thus the passage of an alpha particle through an emulsion leaves a wake'' marked not only by a demarcation of the silver grains but also by a sort of tunnel'' appearing after the development of the emulsion. (J.S.R.)
- Research Organization:
- College de France, Paris
- NSA Number:
- NSA-17-029210
- OSTI ID:
- 4712463
- Journal Information:
- J. Phys., Journal Name: J. Phys. Vol. Vol: 24
- Country of Publication:
- Country unknown/Code not available
- Language:
- French
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