ANALYSIS OF TEMPORAL AND SPATIAL DECAY OF PULSED NEUTRONS IN SINGLE-CORE AND MULTIPLE-CORE SYSTEMS

Citation
H. Yoshioka et al., ANALYSIS OF TEMPORAL AND SPATIAL DECAY OF PULSED NEUTRONS IN SINGLE-CORE AND MULTIPLE-CORE SYSTEMS, Annals of nuclear energy, 25(14), 1998, pp. 1169-1189
Citations number
21
Categorie Soggetti
Nuclear Sciences & Tecnology
Journal title
ISSN journal
03064549
Volume
25
Issue
14
Year of publication
1998
Pages
1169 - 1189
Database
ISI
SICI code
0306-4549(1998)25:14<1169:AOTASD>2.0.ZU;2-7
Abstract
To gain insight into the space-time kinetics of coupled core systems, a series of simple one-dimensional model solutions were investigated. The spatial and temporal decay of a plane pulse was calculated in one- and three-region systems with one- and two-group diffusion theory. Th e solution technique consisted of a temporal Laplace transform, analyt ical solution for the space dependence and finally a numerical inverse Laplace transform back to time domain. The space-time behaviour of th e pulse relaxation in many-region systems has been used to support the development and verification of lumped (many-point) coupled core mode ls. (C) 1998 Elsevier Science Ltd. All rights reserved.