Measurement of effective delayed neutron fraction beta(eff) by covariance-to-mean method for benchmark experiments of beta(eff) at FCA

Authors
Sakurai, T Sodeyama, H Okajima, S
Citation
T. Sakurai et al., Measurement of effective delayed neutron fraction beta(eff) by covariance-to-mean method for benchmark experiments of beta(eff) at FCA, PROG NUCL E, 35(2), 1999, pp. 203-208
Citations number
8
Categorie Soggetti
Nuclear Emgineering
Journal title
PROGRESS IN NUCLEAR ENERGY
ISSN journal
01491970 → ACNP
Volume
35
Issue
2
Year of publication
1999
Pages
203 - 208
Database
ISI
SICI code
0149-1970(1999)35:2<203:MOEDNF>2.0.ZU;2-V
Abstract
Measurements of the effective delayed neutron fraction beta(eff) were carri ed out at the FCA facility of the Japan Atomic Energy Research Institute to contribute to benchmark experiments of beta(eff). These measurements were made in two cores: XIX-1 core fueled with 93% enriched uranium and XIX-3 co re fueled with plutonium. The experimental rs,if was determined with a cova riance-to-mean ratio of counts of a pair of neutron detectors installed in the core. The values of B-eff were 724+/-13pcm and 252+/-5pcm in the cores of XIX-1 and XIX-3 respectively. (C) 1999 Published by Elsevier Science Ltd . All rights reserved.