Abstract
WE have used Dirac's theory of the electron to calculate (1) the probability that a fast electron, passing through matter, emits a quantum of radiation with energy comparable with its own, and (2) the probability that a quantum of radiation, colliding with a nucleus, gives birth to a positive electron. We use Born's approximation for both processes. Provisional estimates for these two probabilities have been given by Heitler1 and by Oppenheimer and Plesset2.
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Z. Phys., 84, 145.
Phys. Rev., 44, 53.
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HEITLER, W., SAUTER, F. Stopping of Fast Particles with Emission of Radiation and the Birth of Positive Electrons. Nature 132, 892 (1933). https://doi.org/10.1038/132892a0
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DOI: https://doi.org/10.1038/132892a0
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