Monte Carlo calculation of electron multiple scattering in thin foils
Jensen, Daniel Christian
Maruyama, Xavier K.
Buskirk, Fred R.
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The electron photon transport code ITS has many applications in the physics and medical industries. The code was originally intended for the use in determining particle transport in think materials. The code breaks down for very thin targets because the multiple scattering approximation used to determine the electron deflection angles for thin steps is inadequate. A method of correction has been developed by Tom Jordan and Joseph Mack which combines a small angle approximation theory to the multiple scattering and an explicit large angle treatment based on a Poisson distribution. This method has been validated against several experiments with great success. The multiple scattering theory of Moliere has also been incorporated into a correction scheme and shows good agreement with experimental data.
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