| S. Leray, A. Boudard, J.C. David, S. Lemaire, Y. Yariv, J. Cugnon, T. Aoust, A. Kelic, K.H. Schmidt, M.V. Ricciardi |
Reliable predictions of light charged particle production in spallation reactions are important to correctly assess gas production in spallation targets. The INCL4-ABLA combination of models, available in the MCNPX transport code, which was found to largely improve spallation residue predictions, was however not able to correctly predict light element yields. The work done recently on both the intranuclear cascade model INCL4 and the de-excitation model ABLA helps correct these deficiencies. In particular, it will be shown that the new versions of the codes coupled together now lead to much more reasonable predictions of both helium, which is important for assessing damage in the window, and of tritium production, which is a major contributor to the target radioactivity. Intermediate mass fragments which are observed experimentally can now be produced by the code. |
