COMPARATIVE PERFORMANCE TESTS OF THE FLUKA-RQMD SYSTEM AND EPAX 2 PREVISIONS VS. EXPERIMENTAL DATA

摘要

This work describes the tests performed on the RQMD module (available in the FLUKA code), to support nucleus-nucleus interactions above 100 MeV uapprox-1. The RQMD-FLUKA system was used to simulate directly simple experimental set-ups to reproduce both secondary hadron production and residual nuclei distributions with ion beams ranging from 100 to 800 MeV uapprox-1. Recent measurements of residual nuclei distributions due to interaction of light ion beams on high-purity targets were used as reference for testing the RQMD-FLUKA prediction capability. Together with FLUKA, the EPAX 2 code was considered as a further reference in fragmentation cross sections. EPAX shows a general tendency to underestimate the experimental fragmentation cross sections for the considered projectile-target combinations. EPAX underestimations are generally close to 40percent, whereas FLUKA Predictions are within 20percent on the average.