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
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.