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Title: Delayed neutron spectra by decay group for fissioning systems from /sup 227/Th through /sup 255/Fm

Abstract

The quality and quantity of delayed neutron precursor data has greatly improved over the past approximately 15 years. Supplementation of the data with model calculations and the use of models to extend the number of precursors to 271 is now practical. These data, along with improved fission-product parameters, permit direct calculations of aggregate behavior for many fissioning nuclides. The results can even be approximated using a few (usually six) temporal groups. This paper summarizes an extensive four-year effort to provide a complete set of evaluated data and emphasizes its use to generate the temporal approximations; precursor data and group values are intended for inclusion in ENDF/B-VI. 19 refs., 8 figs., 1 tab.

Authors:
;
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
OSTI Identifier:
6907219
Report Number(s):
LA-UR-88-2140; CONF-880911-10
ON: DE88014408
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: International reactor physics conference, Jackson Hole, WY, USA, 18 Sep 1988; Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; NUCLEAR DATA COLLECTIONS; NEUTRON SPECTRA; DATA BASE MANAGEMENT; DELAYED NEUTRON ANALYSIS; EXPERIMENTAL DATA; FISSILE MATERIALS; THEORETICAL DATA; CHEMICAL ANALYSIS; DATA; FISSIONABLE MATERIALS; INFORMATION; MANAGEMENT; MATERIALS; NONDESTRUCTIVE ANALYSIS; NUCLEAR REACTION ANALYSIS; NUMERICAL DATA; SPECTRA; 651000* - Nuclear Physics

Citation Formats

England, T R, and Brady, M C. Delayed neutron spectra by decay group for fissioning systems from /sup 227/Th through /sup 255/Fm. United States: N. p., 1988. Web.
England, T R, & Brady, M C. Delayed neutron spectra by decay group for fissioning systems from /sup 227/Th through /sup 255/Fm. United States.
England, T R, and Brady, M C. 1988. "Delayed neutron spectra by decay group for fissioning systems from /sup 227/Th through /sup 255/Fm". United States. https://www.osti.gov/servlets/purl/6907219.
@article{osti_6907219,
title = {Delayed neutron spectra by decay group for fissioning systems from /sup 227/Th through /sup 255/Fm},
author = {England, T R and Brady, M C},
abstractNote = {The quality and quantity of delayed neutron precursor data has greatly improved over the past approximately 15 years. Supplementation of the data with model calculations and the use of models to extend the number of precursors to 271 is now practical. These data, along with improved fission-product parameters, permit direct calculations of aggregate behavior for many fissioning nuclides. The results can even be approximated using a few (usually six) temporal groups. This paper summarizes an extensive four-year effort to provide a complete set of evaluated data and emphasizes its use to generate the temporal approximations; precursor data and group values are intended for inclusion in ENDF/B-VI. 19 refs., 8 figs., 1 tab.},
doi = {},
url = {https://www.osti.gov/biblio/6907219}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1988},
month = {Fri Jan 01 00:00:00 EST 1988}
}

Conference:
Other availability
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