Multigroup Boltzmann Fokker Planck electron-photon transport capability in MCNP{sup trademark}

Adams, K J; Hart, M

Title: Multigroup Boltzmann Fokker Planck electron-photon transport capability in MCNP{sup trademark}

Full Record
Other Related Research

Abstract

The MCNP code system has a robust multigroup transport capability which includes a multigroup Boltzmann-Fokker-Planck (MGBFP) transport algorithm to perform coupled electron-photon or other coupled charged and neutral particle transport in either a forward or adjoint mode. This paper will discuss this capability and compare code results with other transport codes.

Authors:: Adams, K J; Hart, M

Publication Date:: Sat Jul 01 00:00:00 EDT 1995

Research Org.:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE, Washington, DC (United States)

OSTI Identifier:: 100296

Report Number(s):: LA-UR-95-2068; CONF-951006-19
ON: DE95015305; TRN: 95:019277

DOE Contract Number:: W-7405-ENG-36

Resource Type:: Conference

Resource Relation:: Conference: Winter meeting of the American Nuclear Society (ANS), San Francisco, CA (United States), 29 Oct - 1 Nov 1995; Other Information: PBD: [1995]

Country of Publication:: United States

Language:: English

Subject:: 66 PHYSICS; 99 MATHEMATICS, COMPUTERS, INFORMATION SCIENCE, MANAGEMENT, LAW, MISCELLANEOUS; MULTIGROUP THEORY; M CODES; PHOTON TRANSPORT; CHARGED-PARTICLE TRANSPORT; FOKKER-PLANCK EQUATION; MONTE CARLO METHOD; TUNGSTEN; ALUMINIUM

Citation Formats


                    Adams, K J, and Hart, M. Multigroup Boltzmann Fokker Planck electron-photon transport capability in MCNP{sup trademark}.  United States: N. p., 1995. 
        Web.

Copy to clipboard


                    Adams, K J, & Hart, M. Multigroup Boltzmann Fokker Planck electron-photon transport capability in MCNP{sup trademark}.  United States.

Copy to clipboard


                    Adams, K J, and Hart, M. 1995.  
        "Multigroup Boltzmann Fokker Planck electron-photon transport capability in MCNP{sup trademark}".  United States.  https://www.osti.gov/servlets/purl/100296.

Copy to clipboard


                    
@article{osti_100296,

  title        = {Multigroup Boltzmann Fokker Planck electron-photon transport capability in MCNP{sup trademark}},

  author       = {Adams, K J and Hart, M},

  abstractNote = {The MCNP code system has a robust multigroup transport capability which includes a multigroup Boltzmann-Fokker-Planck (MGBFP) transport algorithm to perform coupled electron-photon or other coupled charged and neutral particle transport in either a forward or adjoint mode. This paper will discuss this capability and compare code results with other transport codes.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/100296},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Sat Jul 01 00:00:00 EDT 1995},

  month        = {Sat Jul 01 00:00:00 EDT 1995}

}

Copy to clipboard

Conference:

View Conference (0.39 MB)

Other availability

Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share:

Export Metadata

Save to My Library

Similar records in OSTI.GOV collections:

Multigroup Boltzmann-Fokker-Planck electron-photon transport capability in MCNP

Journal Article Adams, K; Hart, M - Transactions of the American Nuclear Society

The MCNP code system has a robust multigroup transport capability that includes a Boltzmann-Fokker-Planck (MGBFP) transport algorithm to perform coupled electron-photon or other coupled charged and neutral particle transport in either a forward or adjoint mode. This paper discusses this capability.
Multi-group Fokker-Planck proton transport in MCNP{trademark}

Conference Adams, K

MCNP has been enhanced to perform proton transport using a multigroup Fokker Planck (MGFP) algorithm with primary emphasis on proton radiography simulations. The new method solves the Fokker Planck approximation to the Boltzmann transport equation for the small angle multiple scattering portion of proton transport. Energy loss is accounted for by applying a group averaged stopping power over each transport step. Large angle scatter and non-inelastic events are treated as extinction. Comparisons with the more rigorous LAHET code show agreement to a few per cent for the total transmitted currents. The angular distributions through copper and low Z compounds showmore »« less
Full Text Available
A hybrid multigroup/continuous-energy Monte Carlo method for solving the Boltzmann-Fokker-Planck equation

Journal Article Morel, J; Lorence, Jr, L; Kensek, R; ... - Nuclear Science and Engineering

A hybrid multigroup/continuous-energy Monte Carlo algorithm is developed for solving the Boltzmann-Fokker-Planck equation. This algorithm differs significantly from previous charged-particle Monte Carlo algorithms. Most importantly, it can be used to perform both forward and adjoint transport calculations, using the same basic multigroup cross-section data. The new algorithm is fully described, computationally tested, and compared with a standard condensed history algorithm for coupled electron-photon transport calculations.
New multigroup Monte Carlo scattering algorithm suitable for neutral- and charged-particle Boltzmann and Fokker-Planck calculations

Technical Report Sloan, D

Morel (1981) has developed multigroup Legendre cross sections suitable for input to standard discrete ordinates transport codes for performing charged-particle Fokker-Planck calculations in one-dimensional slab and spherical geometries. Since the Monte Carlo neutron transport code, MORSE, uses the same multigroup cross section data that discrete ordinates codes use, it was natural to consider whether Fokker-Planck calculations could be performed with MORSE. In order to extend the unique three-dimensional forward or adjoint capability of MORSE to Fokker-Planck calculations, the MORSE code was modified to correctly treat the delta-function scattering of the energy operator, and a new set of physically acceptable crossmore »« less
https://doi.org/10.2172/5907780

Full Text Available
Boltzmann-Fokker-Planck calculations using standard discrete-ordinates codes

Conference Morel, J

The Boltzmann-Fokker-Planck (BFP) equation can be used to describe both neutral and charged-particle transport. Over the past several years, the author and several collaborators have developed methods for representing Fokker-Planck operators with standard multigroup-Legendre cross-section data. When these data are input to a standard S/sub n/ code such as ONETRAN, the code actually solves the Boltzmann-Fokker-Planck equation rather than the Boltzmann equation. This is achieved wihout any modification to the S/sub n/ codes. Because BFP calculations can be more demanding from a numerical viewpoint than standard neutronics calculations, we have found it useful to implement new quadrature methods ad convergencemore »« less
Full Text Available

Similar Records