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Title: A Spectral Verification of the HELIOS-2 Lattice Physics Code

Abstract

Core modeling of the Advanced Test Reactor (ATR) at INL is currently undergoing a significant update through the Core Modeling Update Project1. The intent of the project is to bring ATR core modeling in line with today’s standard of computational efficiency and verification and validation practices. The HELIOS-2 lattice physics code2 is the lead code of several reactor physics codes to be dedicated to modernize ATR core analysis. This presentation is concerned with an independent verification of the HELIOS-2 spectral representation including the slowing down and thermalization algorithm and its data dependency. Here, we will describe and demonstrate a recently developed simple cross section generation algorithm based entirely on analytical multigroup parameters for both the slowing down and thermal spectrum. The new capability features fine group detail to assess the flux and multiplication factor dependencies on cross section data sets using the fundamental infinite medium as an example.

Authors:
; ;
Publication Date:
Research Org.:
Idaho National Laboratory (INL)
Sponsoring Org.:
DOE - NE
OSTI Identifier:
1060975
Report Number(s):
INL/CON-12-26577
DOE Contract Number:  
DE-AC07-05ID14517
Resource Type:
Conference
Resource Relation:
Conference: American Nuclear Society Winter Meeting,San Diego, CA,11/11/2012,11/15/2012
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Advanced Test Reacotr; Core Modeling Update Project; HELIOS-2

Citation Formats

D. S. Crawford, B. D. Ganapol, and D. W. Nigg. A Spectral Verification of the HELIOS-2 Lattice Physics Code. United States: N. p., 2012. Web.
D. S. Crawford, B. D. Ganapol, & D. W. Nigg. A Spectral Verification of the HELIOS-2 Lattice Physics Code. United States.
D. S. Crawford, B. D. Ganapol, and D. W. Nigg. Thu . "A Spectral Verification of the HELIOS-2 Lattice Physics Code". United States. https://www.osti.gov/servlets/purl/1060975.
@article{osti_1060975,
title = {A Spectral Verification of the HELIOS-2 Lattice Physics Code},
author = {D. S. Crawford and B. D. Ganapol and D. W. Nigg},
abstractNote = {Core modeling of the Advanced Test Reactor (ATR) at INL is currently undergoing a significant update through the Core Modeling Update Project1. The intent of the project is to bring ATR core modeling in line with today’s standard of computational efficiency and verification and validation practices. The HELIOS-2 lattice physics code2 is the lead code of several reactor physics codes to be dedicated to modernize ATR core analysis. This presentation is concerned with an independent verification of the HELIOS-2 spectral representation including the slowing down and thermalization algorithm and its data dependency. Here, we will describe and demonstrate a recently developed simple cross section generation algorithm based entirely on analytical multigroup parameters for both the slowing down and thermal spectrum. The new capability features fine group detail to assess the flux and multiplication factor dependencies on cross section data sets using the fundamental infinite medium as an example.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {11}
}

Conference:
Other availability
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