Nuclide Composition Calculation for Pb-Bi Coolant of 80 MW Sub-Critical Reactor. Comparison of Different Data Libraries

Abstract

Nuclide composition of Pb-Bi coolant of 80 MW sub-critical reactor has been investigated. Particle spectra for different parts of the reactor including spallation (target) module, the core and other units have been calculated. Special data files for nucleon induced reaction cross-sections including data for spallation reactions, fission product and heavy cluster yields at the energies of primary particles up to 1 GeV have been prepared. The special attention has been paid to the uncertainty of the results obtained, the influence of the choice of nuclear model parameters used for nuclear reaction cross-section calculations and to the comparison of the results obtained using different nuclear data libraries applied for nuclide composition calculations. The reactor configuration with the “window” for the proton beam and the “windowless” design were investigated.