Showing papers in "Progress in Nuclear Energy in 1996"

TL;DR: In this paper, a transverse-integrated class of nodal methods for solving the time-dependent neutron diffusion equation for nuclear reactor analysis is described, as well as techniques for performing the time integration.

TL;DR: In this article, the Particle Bed Reactor (PBR) was considered for the Space Nuclear Thermal Propulsion (SNTP) Program and several new algorithms were developed for fluid dynamics, heat transfer and transient analysis; and commercial codes were used for the stress analysis.

TL;DR: In this article, an analysis of energy production during passive shutdown of an inherently safe nuclear reactor in case of loss of cooling without scrambling is presented, and the system response is shown to be usually oscillatory with rather weak damping, due to the long thermal time constant of the passively cooled reactor.

TL;DR: The nature, real or complex of the k eff, c and λ eigenvalues and their variation with size and other parameters are discussed and in some cases these are explained theoretically.

TL;DR: In this paper, the authors describe the current state of the light ion ICF program, its current limitations, and the prognosis for future advances, as well as a successful research program would lead to a commercially attractive fusion power plant.

TL;DR: The zero dynamic material buckling method (ZMMB) as mentioned in this paper was proposed for measurement of the thermal neutron macroscopic absorption cross section of small samples, where the neutrons are slowed down in the system and a die-away rate of escaping thermal neutrons is measured.

TL;DR: In this article, the authors considered the transport of particles in media whose cross sections are random functions of space and time, and the linear transport equation was viewed as a Boltzmann-Langevin equation, the solution of which generated a stochastic process, the angular flux, for different realizations of the cross section.

TL;DR: The mathematical models currently employed to study the migration of radionuclides in fractured rock are explained and compared in this article, and a new approach based on an analogy with neutron transport is introduced.

TL;DR: In this paper, a maximum principle for the time-dependent first-order Boltzmann equation is established in two independent ways: by a generalized least squares method and by a method based on the properties of an appropriate bi-linear form.

TL;DR: In this paper, a generalized relation between coupling coefficients and eigenvalue separation is derived by taking neutron importance function as a new base of evaluating the coupling magnitude, and identifying the boundary of a constituent core by zeroes of the first spatial mode.

TL;DR: In this article, the authors studied the deposition of a solid aerosol through a fine tube or crack suspended in a mixture of a non-condensable gas and water vapour.

TL;DR: The importance of non-asymptotic convergence velocity as a theoretical means to characterize and optimize acceleration methods is discussed in detail for isotropic as well as highly anisotropic scattering cases; this shows the innacuracy of results based only on the usual asyptotic analysis as discussed by the authors.

TL;DR: The Advanced Neutron Source (ANS) as discussed by the authors is a new experimental facility planned to meet the need for an intense steady-state source of neutrons, which will be built around a new research reactor with a fission power of about 330 MW.

TL;DR: In this article, the problem of error compensation for multiple approximations of the solution to the neutron transport equation is investigated. But the results show that the solution turns out to be poorer in details when more approximation are simultaneously accepted.