Open AccessSingle scatter electron Monte Carlo
Author(s) -
M Svatos
Publication year - 1997
Language(s) - English
Resource type - Reports
DOI - 10.2172/622734
Subject(s) - monte carlo method , stopping power , bremsstrahlung , computational physics , physics , electron , ionization , dynamic monte carlo method , range (aeronautics) , statistical physics , nuclear physics , materials science , optics , ion , mathematics , statistics , quantum mechanics , detector , composite material
A single scatter electron Monte Carlo code (SSMC), CREEP, has been written which bridges the gap between existing transport methods and modeling real physical processes. CREEP simulates ionization, elastic and bremsstrahlung events individually. Excitation events are treated with an excitation-only stopping power. The detailed nature of these simulations allows for calculation of backscatter and transmission coefficients, backscattered energy spectra, stopping powers, energy deposits, depth dose, and a variety of other associated quantities. Although computationally intense, the code relies on relatively few mathematical assumptions, unlike other charged particle Monte Carlo methods such as the commonly-used condensed history method. CREEP relies on sampling the Lawrence Livermore Evaluated Electron Data Library (EEDL) which has data for all elements with an atomic number between 1 and 100, over an energy range from approximately several eV (or the binding energy of the material) to 100 GeV. Compounds and mixtures may also be used by combining the appropriate element data via Bragg additivity