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Title: Determination of Godiva`s effective delayed neutron fraction using newly calculated delayed neutron spectra

Abstract

When calculating the effective delayed neutron fraction {beta}{sub eff} for a given reactor system, the assumed delayed neutron group spectra and the assumed number of delayed neutrons born per fission {nu}{sub d} can have a major impact on the final value. Over the years, the recommended values for the delayed neutron spectra and for {nu}{sub d} have slowly changed. To ascertain whether or not these changes have increased the accuracy of {beta}{sub eff} calculations in fast {sup 235}U systems, the authors have reevaluated {beta}{sub eff} for the benchmark system Godiva-I using newly calculated delayed neutron spectra and Tuttle`s recommended values of {nu}{sub d} for both {sup 235}U and {sup 238}U.

Authors:
;  [1];  [2]
  1. Los Alamos National Lab., NM (United States)
  2. Univ. of New Mexico, Albuquerque, NM (United States)
Publication Date:
OSTI Identifier:
678165
Report Number(s):
CONF-990605-
Journal ID: TANSAO; ISSN 0003-018X; TRN: 99:009150
Resource Type:
Journal Article
Journal Name:
Transactions of the American Nuclear Society
Additional Journal Information:
Journal Volume: 80; Conference: 1999 annual meeting of the American Nuclear Society (ANS), Boston, MA (United States), 6-10 Jun 1999; Other Information: PBD: 1999
Country of Publication:
United States
Language:
English
Subject:
22 NUCLEAR REACTOR TECHNOLOGY; GODIVA REACTOR; EFFECTIVE RANGE THEORY; DELAYED NEUTRON FRACTION; REACTOR KINETICS; NEUTRON SPECTRA; DELAYED NEUTRONS; URANIUM 235; BENCHMARKS

Citation Formats

Spriggs, G.D., Campbell, J.M., and Busch, R.D. Determination of Godiva`s effective delayed neutron fraction using newly calculated delayed neutron spectra. United States: N. p., 1999. Web.
Spriggs, G.D., Campbell, J.M., & Busch, R.D. Determination of Godiva`s effective delayed neutron fraction using newly calculated delayed neutron spectra. United States.
Spriggs, G.D., Campbell, J.M., and Busch, R.D. Wed . "Determination of Godiva`s effective delayed neutron fraction using newly calculated delayed neutron spectra". United States.
@article{osti_678165,
title = {Determination of Godiva`s effective delayed neutron fraction using newly calculated delayed neutron spectra},
author = {Spriggs, G.D. and Campbell, J.M. and Busch, R.D.},
abstractNote = {When calculating the effective delayed neutron fraction {beta}{sub eff} for a given reactor system, the assumed delayed neutron group spectra and the assumed number of delayed neutrons born per fission {nu}{sub d} can have a major impact on the final value. Over the years, the recommended values for the delayed neutron spectra and for {nu}{sub d} have slowly changed. To ascertain whether or not these changes have increased the accuracy of {beta}{sub eff} calculations in fast {sup 235}U systems, the authors have reevaluated {beta}{sub eff} for the benchmark system Godiva-I using newly calculated delayed neutron spectra and Tuttle`s recommended values of {nu}{sub d} for both {sup 235}U and {sup 238}U.},
doi = {},
journal = {Transactions of the American Nuclear Society},
number = ,
volume = 80,
place = {United States},
year = {1999},
month = {9}
}