Mechanism of light cluster production in nucleon induced reactions at intermediate energy

A dynamical model dedicated to the nucleon induced reaction between 30 and 150 MeV is presented. It considers different stages of the reaction: the approaching phase, the in-medium nucleon-nucleon collisions, the cluster formation, and the secondary deexcitation process. The notions of influence area and phase-space exploration during the reaction are introduced. The importance of the reaction geometry and the conservation laws is emphasized. The model is able to globally reproduce the absolute cross sections for the emission of neutron and light charged particles for proton- and neutron induced reactions on heavy and intermediate targets ($^{56}$Fe and $^{208}$Pb)

Preliminary shielding assessment of EURISOL postaccelerator

This conference is a collaboration of the 11th International Conference on Radiation Shielding (ICRS-11) and the 15th Topical Meeting of the Radiation Protection and Shielding Division (RPSD-2008), 13-18 April 2008, Georgia, US

Monte-Carlo aided design of neutron shielding concretes

The process of design of building composites, like concrete is a complex one and involves many aspects like physical and mechanical properties, durability, shielding efficiency, costs of production and dismantlement etc. There are plenty of parameters to optimize and computer tools can help to choose the best solution. A computer aided design plays an important role nowadays. It becomes more accurate, faster and cheaper, so laboratories often apply computer simulation methods prior to field testing. In case of nuclear engineering, the radiation shielding problems are of much importance, because safety of such facilities is a key point. In this article the most effective methods for neutron shielding studies based on Monte-Carlo simulations of neutron transport and nuclide activation studies in concrete are presented. Two codes: MCNPX and CINDER’90 are extensively used to compare the shielding efficiency of commonly used concretes and to study the influence of concentration of B, Ba and Fe elements on shielding efficiency

Benchmark calculations on particle production within the EURISOL DS project

EURISOL DS/Task 5/TN-06-0

In-target rare nuclei production rates with EURISOL single-stage configuration

We conducted calculations of exotic nuclei production rates for 320 configurations of EURISOL (European Isotope Separation On-Line Radioactive Ion Beam Facility) direct spallation targets. The nuclei yields were evaluated using neutron generation-transport codes, completed with evolution calculations to account for nuclei decays and low energy neutron interactions. The yields were optimized for 11 selected elements (Li, Be, Ne, Mg, Ar, Ni, Ga, Kr, Sn, Hg, Fr) and 23 of their isotopes, as function of the target compositions and geometries as well as the incident proton beam energies. For the considered elements, we evaluated the yield distributions as functions of the charge and mass numbers using two different spallation models

Activation calculation of the EURISOL mercury target

EURISOL DS/Task5/TN-06-0