Abstract
WITHIN a wide range of energies (12.4 kV.–2.2 MeV.) X-rays are all about equally efficient in inducing mutation1. The frequency of induced mutations is directly proportional to the dose measured in roentgens1. It is of interest to determine whether the high-energy X-radiation produced by the betatron has, for equal ionization in tissue, mutagenic efficiency equal to that of lower-energy radiation. We have therefore made a preliminary investigation of mutations induced by X-radiation produced by the betatron operating at 23 MeV. This produces radiations at all quantum energies from 0 to 23 MeV.
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References
Lea, D. E., “Actions of Radiations on Living Cells” (Camb. Univ Press, 1946).
Luce, W. M., Quastler, H., and Skaggs, L. S., Amer. J. Roent. and Rad. Ther., 62, 555 (1949).
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REGEHR, H., ARNASON, T. & JOHNS, H. Induction of Mutation by High-Energy X-Radiation Produced by a 23-MeV. Betatron. Nature 166, 228–229 (1950). https://doi.org/10.1038/166228a0
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DOI: https://doi.org/10.1038/166228a0
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