@inproceedings{aab6808e37f349af824bf624a30e70dd,
title = "Application of the Subgroup Decomposition Method (SDM) for Reactor Simulation",
abstract = "The performance of the TITAN-SDM algorithm for solving a reactor pressure vessel dosimetry problem is evaluated. Douglass and Rahnema recently developed the he subgroup decomposition method (SDM); a methodology which directly couples a consistent coarse-group transport calculation with a set of {"}decomposition sweeps{"} to provide a fine-group flux spectrum. The SDM has been implemented into the TITAN three-dimensional transport code and has been shown to accurately solve core criticality problems while significantly reducing computation time. This paper addresses the use of SDM for fixed-source problems. The VENUS-2 dosimetry benchmark problem is selected with an emphasis on fast neutron analysis; therefore, material cross sections are generated from the BUGLE-96 library considering neutron energies greater than 0.1 MeV. The accuracy and efficiency of TITAN-SDM is evaluated by comparison with a standard TITAN multigroup calculation.",
author = "Nathan Roskoff and William Walters and Alireza Haghighat",
note = "Publisher Copyright: {\textcopyright} 2016 Owned by the authors, published by EDP Sciences.; 15th International Symposium on Reactor Dosimetry, ISRD 2014 ; Conference date: 18-05-2014 Through 23-05-2014",
year = "2016",
month = feb,
day = "3",
doi = "10.1051/epjconf/201610603008",
language = "English (US)",
series = "EPJ Web of Conferences",
publisher = "EDP Sciences",
editor = "Abdallah Lyoussi",
booktitle = "ISRD 2014 - International Symposium on Reactor Dosimetry",
address = "France",
}