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Selective Development of Fission Tracks in an Electron-sensitive Emulsion

Nature volume 162, pages 526–527 (1948)Cite this article

Abstract

THE interpretation of records of nuclear reactions occurring in photographic emulsions is materially assisted by differences in the solidity and grain-frequency of tracks produced by particles of different ionizing power1. Discrimination between tracks of various particles can be enhanced by using emulsions with a range of intrinsic sensitivities2 ; to a lesser extent by varying development time and composition of developer2,3 ; or by applying oxidizing solutions between exposure and development4.

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References

  1. See, for example, Powell, C. F., and Occhialini, G. P. S., "Nuclear Physics in Photographs" (Clarendon Press, Oxford, 1947).

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  2. Powell, C. F., Occhialini, G. P. S., Livesey, D. L., and Chilton, L. V., J. Sci. Inst., 23, 102 (1944).

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  3. Demers, P., Can. J. Res., 25, 225 (1947).

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  4. Perfilov, N. A., C.R. Acad. Sci. U.R.S.S., 42, 258 (1944).

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  5. As reference 3.

  6. Berriman, R. W., Nature, 181, 432 (1940). Herz, R. H., Nature, 161, 928 (1948).

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  7. Borst, L. B., and Floyd, J. J., Bull. Amer. Phys. Soc., 21, No. 3, 13 (1946).

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  8. Green, L. L., and Livesey, D. L., Nature, 158, 272 (1946), obtained a similar result from incidental desensitization occurring when plates were bathed in uranyl acetate.

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  1. Research Laboratory, Kodak, Ltd., Wealdstone, Harrow, Middlesex

    G. W. W. STEVENS

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  1. G. W. W. STEVENS
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STEVENS, G. Selective Development of Fission Tracks in an Electron-sensitive Emulsion. Nature 162, 526–527 (1948). https://doi.org/10.1038/162526b0

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