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| Home > Publications database > Radiation induced material damage - Status quo of current simulations of the Ta target |
| Conference Presentation (Invited) | FZJ-2020-02361 |
2020
Abstract: Materials which are exposed to a radiation field with particles of sufficient high kinetic energies suffer degradation processes and undergo changes in their micro- and macroscopic properties such as mechanical, thermal or electrical ones. The understanding of these radiation induced material damages is crucial both for the estimation of a target's lifetime as well as for safety aspects. This presentation aims to give a compact and clear overview about the current status of the radiation damage analysis of the tantalum target designated for the Jülich high-brilliance neutron source (HBS) based on the common displacements per atom (dpa) concept. After some few fundamental aspects in the very early beginning, the obtained results of SRIM and FLUKA simulations will be presented in a very concise and clear manner. Whereas previous SRIM simulations focus only on the proton damage, FLUKA simulations will mainly set the focus on the damage caused by the produced neutrons but also give a short overview about the contribution of all relevant particles during the hadronic collision cascade. Furthermore, the results of both Monte Carlo codes will be compared to each other and the meaning of the obtained dpa values will be discussed as well as a prospect for future work will be given.
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