A Transport Condensed History Algorithm for Electron Monte Carlo Simulations
Abstract
An advanced multiple scattering algorithm for the Monte Carlo simulation of electron transport problems is developed. Unlike established multiple scattering algorithms, this new method, called transport condensed history (TCH), is a true transport process - it simulates a transport equation that approximates the exact Boltzmann transport process. In addition to having a larger mean free path and a more isotropic scattering operator than the Boltzmann equation, the approximate transport equation also preserves the zeroth- and first-order angular moments of the exact equation. These features enable TCH to accurately predict electron position as a function of energy (path length) and to move particles across material boundaries and interfaces with acceptable accuracy and efficiency. Numerical results and dose calculations are shown to reveal the advantages of TCH over conventional condensed history schemes.
- Authors:
-
- Lawrence Livermore National Laboratory (United States)
- University of Michigan (United States)
- Publication Date:
- OSTI Identifier:
- 20804732
- Resource Type:
- Journal Article
- Journal Name:
- Nuclear Science and Engineering
- Additional Journal Information:
- Journal Volume: 139; Journal Issue: 1; Other Information: Copyright (c) 2006 American Nuclear Society (ANS), United States, All rights reserved. http://epubs.ans.org/; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0029-5639
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ACCURACY; ALGORITHMS; BOLTZMANN EQUATION; CHARGED-PARTICLE TRANSPORT; COMPUTERIZED SIMULATION; EFFICIENCY; ELECTRONS; ENERGY DEPENDENCE; MEAN FREE PATH; MONTE CARLO METHOD; MULTIPLE SCATTERING; TRANSPORT THEORY
Citation Formats
Tolar, Jr, Danny R, and Larsen, Edward W. A Transport Condensed History Algorithm for Electron Monte Carlo Simulations. United States: N. p., 2001.
Web.
Tolar, Jr, Danny R, & Larsen, Edward W. A Transport Condensed History Algorithm for Electron Monte Carlo Simulations. United States.
Tolar, Jr, Danny R, and Larsen, Edward W. 2001.
"A Transport Condensed History Algorithm for Electron Monte Carlo Simulations". United States.
@article{osti_20804732,
title = {A Transport Condensed History Algorithm for Electron Monte Carlo Simulations},
author = {Tolar, Jr, Danny R and Larsen, Edward W},
abstractNote = {An advanced multiple scattering algorithm for the Monte Carlo simulation of electron transport problems is developed. Unlike established multiple scattering algorithms, this new method, called transport condensed history (TCH), is a true transport process - it simulates a transport equation that approximates the exact Boltzmann transport process. In addition to having a larger mean free path and a more isotropic scattering operator than the Boltzmann equation, the approximate transport equation also preserves the zeroth- and first-order angular moments of the exact equation. These features enable TCH to accurately predict electron position as a function of energy (path length) and to move particles across material boundaries and interfaces with acceptable accuracy and efficiency. Numerical results and dose calculations are shown to reveal the advantages of TCH over conventional condensed history schemes.},
doi = {},
url = {https://www.osti.gov/biblio/20804732},
journal = {Nuclear Science and Engineering},
issn = {0029-5639},
number = 1,
volume = 139,
place = {United States},
year = {Sat Sep 15 00:00:00 EDT 2001},
month = {Sat Sep 15 00:00:00 EDT 2001}
}