Speaker
Description
One of the conceptual designs of the breeder blanket for a European DEMO is the Water Cooled Lithium Lead (WCLL) concept. Design development of the WCLL blanket in recent years has led to evolution of the neutronics model employing the MCNP code, with key changes in radial lengths and thickness as well as dimensional differences in inner structures such as breeding zone, shielding zones and manifold. Furthermore there has also been a significant increase in projected fusion power. Such changes were made with respect to its nuclear, thermohydraulic and thermomechanical performances. In this work neutronic characteristics of WCLL modules were analysed in terms of fusion power increase and dimensional changes of the blanket geometry presented in DEMO 2014 and 2015 models. For comparison, outboard and inboard blanket modules of equatorial region were selected. Investigated neutronic characteristics include activity, decay heat and contact dose rates. Numerical experiment was carried out with MCNP particle transport code and FISPACT activation calculation code using EAF-2010 nuclear data library.
Keywords: nuclear fusion, FISPACT, MCNP, neutron activation, DEMO, WCLL
Acknowledgements: This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission.
| Eligible for student paper award? | Yes |
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