On the theory and simulation of multiple Coulomb scattering of heavy charged particles

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The Moliere theory of multiple Coulomb scattering is modified to take into account difference between scattering off atomic nuclei and electron. A simple analytical expression for angular distribution of charged particles passing through a thick absorber is found. It does not assume any special form for a differential scattering cross section and has wider range of applicability than a Gaussian approximation. A well-known method to simulate multiple Coulomb scattering is based on the different treatment of ''soft'' and ''hard'' collisions. An angular deflection in a large number of ''soft'' collisions is sampled using the proposed distribution function, a small number ... continued below

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166 Kilobytes pages

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Striganov, Sergei I. May 12, 2004.

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The Moliere theory of multiple Coulomb scattering is modified to take into account difference between scattering off atomic nuclei and electron. A simple analytical expression for angular distribution of charged particles passing through a thick absorber is found. It does not assume any special form for a differential scattering cross section and has wider range of applicability than a Gaussian approximation. A well-known method to simulate multiple Coulomb scattering is based on the different treatment of ''soft'' and ''hard'' collisions. An angular deflection in a large number of ''soft'' collisions is sampled using the proposed distribution function, a small number of ''hard'' collision are simulated directly. A boundary between ''hard'' and ''soft'' collisions is defined providing a precise sampling of a scattering angle (1% level) and a small number of ''hard'' collisions. A corresponding simulating module takes into account projectile and nucleus charged distributions and exact kinematics of a projectile-electron interactions.

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166 Kilobytes pages

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  • 10th International Conference on Radiation Shielding (ICRS-10), Funchal, Madeira (PT), 05/09/2004--05/14/2004

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  • Report No.: FERMILAB-Conf-04/056-AD
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 823655
  • Archival Resource Key: ark:/67531/metadc783415

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  • May 12, 2004

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  • Dec. 3, 2015, 9:30 a.m.

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  • Aug. 5, 2016, 3:17 p.m.

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Striganov, Sergei I. On the theory and simulation of multiple Coulomb scattering of heavy charged particles, article, May 12, 2004; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc783415/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.