Abstract
BIOLOGICAL effects of neutron-rays from a cyclotron have been reported, on the change of blood pictures in living rats by Lawrence and Lawrence1, on the retardation of the germination of wheat seedlings by Zirkle and Aebersold2, and on the fatal dose of the sarcoma 180 by Lawrence, Aebersold and Lawrence3. They compared the effects of fast neutrons with those of hard X-rays, and found that neutrons are, in fact, biologically, much more effective than in the case of X-rays.
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Lawrence, J. H., and Lawrence, E. O., Proc. Nat. Acad. Sci., 22, 124 (1936).
Zirkle, R. E., and Aebersold, P. C., Proc. Nat. Acad. Sci., 22, 134 (1936).
Lawrence, J. H., Aebersold, P. C., and Lawrence, E. O., Proc. Nat. Acad. Sci., 22, 534 (1936).
Motida, N., Sasao, T., and Koenuma, N., Nippon Röntgen Gakkwai Zassi (Japanische Z. Röntgenologie), 14, 201 (1936) ; Motida, N., Koenuma, N., and Sasao, T., Nippon Röntgen Gakkwai Zassi, 14, 471 (1937).
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NAKAIDZUMI, M., MURATI, K. & YAMAMURA, Y. Biological Effects of the Rays produced by a Cyclotron. Nature 140, 359 (1937). https://doi.org/10.1038/140359a0
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DOI: https://doi.org/10.1038/140359a0
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