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Implementation of algorithms based on a new electron model in MCNP: Underpinned by Moliere theory

Abstract

For several years the Monte Carlo code MCNP has been widely used at ENEA (Italian Agency for New Technologies, Energy and the Environment) both for photon and neutron transport mainly in fixed-source problems. Before MCNP version 4 containing electron transport became available, it was decided to acquire a Monte Carlo electron/photon transport capability, implementing in MCNP algorithms based on a new electron model, underpinned by the multi-scattering theory of Moliere. However, since MCNP4 uses the Goudsmit-Saunderson theory, the two versions may be regarded as complementary. The code, developed at ENEA-Bologna principally for radiation protection and dosimetry applications, was named MCNPE-BO and brief descriptions as well as some benchmarking problems have already been published. This report is intended to give a complete description of the code and the electron algorithm that it employs. A short review of the main differences between MCNPE-BO and MCNP4 and the input parameters is given. Two appendices with a detailed description of the inputs of MCNPE-BO and PEGS, the cross-section pre-processor, are annexed to this report.
Authors:
Guaraldi, R; Padoani, F [1] 
  1. ENEA, Bologna (Italy). Area Energia Ambiente e Salute
Publication Date:
Oct 01, 1994
Product Type:
Technical Report
Report Number:
ENEA-RT-ERG-94-17; RT/ERG-94-17
Reference Number:
SCA: 663610; PA: ITA-95:000043; EDB-95:048548; SN: 95001347463
Resource Relation:
Other Information: PBD: Oct 1994
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CHARGED-PARTICLE TRANSPORT; MOLIERE THEORY; ELECTRONS; NEUTRON TRANSPORT; PHOTON TRANSPORT; MONTE CARLO METHOD; M CODES; MULTIPLE SCATTERING; 663610; NEUTRON PHYSICS
OSTI ID:
10123592
Research Organizations:
ENEA, Bologna (Italy). Area Energia Ambiente e Salute
Country of Origin:
Italy
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1120-5563; Other: ON: DE95749694; TRN: IT9500043
Availability:
OSTI; NTIS (US Sales Only)
Submitting Site:
ITA
Size:
38 p.
Announcement Date:
Jul 04, 2005

Citation Formats

Guaraldi, R, and Padoani, F. Implementation of algorithms based on a new electron model in MCNP: Underpinned by Moliere theory. Italy: N. p., 1994. Web.
Guaraldi, R, & Padoani, F. Implementation of algorithms based on a new electron model in MCNP: Underpinned by Moliere theory. Italy.
Guaraldi, R, and Padoani, F. 1994. "Implementation of algorithms based on a new electron model in MCNP: Underpinned by Moliere theory." Italy.
@misc{etde_10123592,
title = {Implementation of algorithms based on a new electron model in MCNP: Underpinned by Moliere theory}
author = {Guaraldi, R, and Padoani, F}
abstractNote = {For several years the Monte Carlo code MCNP has been widely used at ENEA (Italian Agency for New Technologies, Energy and the Environment) both for photon and neutron transport mainly in fixed-source problems. Before MCNP version 4 containing electron transport became available, it was decided to acquire a Monte Carlo electron/photon transport capability, implementing in MCNP algorithms based on a new electron model, underpinned by the multi-scattering theory of Moliere. However, since MCNP4 uses the Goudsmit-Saunderson theory, the two versions may be regarded as complementary. The code, developed at ENEA-Bologna principally for radiation protection and dosimetry applications, was named MCNPE-BO and brief descriptions as well as some benchmarking problems have already been published. This report is intended to give a complete description of the code and the electron algorithm that it employs. A short review of the main differences between MCNPE-BO and MCNP4 and the input parameters is given. Two appendices with a detailed description of the inputs of MCNPE-BO and PEGS, the cross-section pre-processor, are annexed to this report.}
place = {Italy}
year = {1994}
month = {Oct}
}