EMPIRE is a flexible and easy-to-use tool for the basic research and evaluation of nuclear data. It is a modular system of nuclear reaction codes for advanced modeling of nuclear reactions using various theoretical models.

(a) high nuclear level density and broad overlapping resonances, (b) many open reaction channels, inelasticity and absorption. Use a complex (absorptive) optical model potential – from theory or ‘simply’ fitted to a body of elastic scattering data for a …

2007年12月1日 · EMPIRE is a modular system of nuclear reaction codes, comprising various nuclear models, and designed for calculations over a broad range of energies and incident particles. A projectile can be a neutron, proton, any ion (including heavy-ions) or a photon.

The compound reaction mechanism There are two extreme mechanisms for describing the interaction of two nuclear systems: compound nucleus reactions, a + A → C∗ → b + B∗ : the projectile is ‘captured’ by the target and the two systems coalesce to form a highly excited state (the ‘compound nucleus’)

In order to model a full fuel cycle in a nuclear reactor, it is necessary to simulate the short time-scale kinetic behavior of the reactor as well as the long time-scale dynamics that occur with fuel burnup.

Module 8 - Low Power Reactor Dynamics. Previous lectures described origins of neutron diffusion equation and balance required for reactor criticality. This lecture will: Delayed neutron production via 2.2MeV Deuterium photo-nuclear (n,γ) reactions would be significant in any D2O moderated reactor such as CANDU.

No single model is successful in explaining all the aspects of the various types of nuclear reactions. Let us consider three models which have been proposed for explaining the results of nuclear reaction studies.

The Subgroup A activities focus on the development of nuclear reaction models and codes, used in evaluation work for nuclear reactions from the unresolved energy region up to the pion threshold production limit, and for target nuclides from the low teens and heavier.

Modelling of Nuclear Reactor Multiphysics: From Local Balance Equations to Macroscopic Models in Neutronics and Thermal-Hydraulics is an accessible guide to the advanced methods used to model nuclear reactor systems.

2007年12月15日 · EMPIRE is a modular system of nuclear reaction codes, comprising various nuclear models, and designed for calculations over a broad range of energies and incident particles. A projectile can be a neutron, proton, any ion (including heavy-ions) or a photon.