A theoretical calculation, based on classical electrodynamics, gives for the maximum angular deflection, when certain approximations are made, He/mφ, where ω/2π is the frequency of the radiation, and H is the field due to it. For sunlight (H=.04) the value is only 4 X 10-10, far too small to detect experimentally, while for intense x-rays, the value is of the order of 10-13. Recently C. J. Lapp reported having obtained an observable deflection with x-rays. If further research should confirm this result, it would appear to be in direct conflict with the classical theory.
Proceedings of the Iowa Academy of Science
©1923 Iowa Academy of Science, Inc.
Hulburt, E. O.
"The Deflection of a Stream of Electrons by Electromagnetic Radiation,"
Proceedings of the Iowa Academy of Science, 30(1), 78-78.
Available at: https://scholarworks.uni.edu/pias/vol30/iss1/20