Abstract
The Material Plasma Exposure eXperiment (MPEX) has completed its design phase. MPEX will be a unique facility to investigate plasma material interactions (PMIs) under fusion prototypic divertor conditions in steady state. This includes plasma exposure conditions expected in a fusion reactor divertor. Materials to be investigated will include solids, liquids, and neutron pre-irradiated materials. Electron and ion heating will allow for a large operational domain ranging from erosion-dominated PMI conditions to deposition-dominated PMI conditions. An overview of the final design for all MPEX systems is given. In particular, it is shown how mission-driven project requirements have led to detailed design choices with innovative solutions. Examples are the water-cooled helicon window, the electron cyclotron heating launcher, the target holder and manipulator, and the autonomous decouplers.
| Original language | English |
|---|---|
| Pages (from-to) | 1113-1123 |
| Number of pages | 11 |
| Journal | Fusion Science and Technology |
| Volume | 79 |
| Issue number | 8 |
| DOIs | |
| State | Published - 2023 |
Funding
This paper has been authored by UT-Battelle, LLC under contract no. DE-AC05-00OR22725 with the DOE. The U.S. government retains and the publisher, by accepting this paper for publication, acknowledges that the U.S. government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce this paper, or allow others to do so, for U.S. government purposes. The U.S. Department of Energy (DOE) will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).
Keywords
- Fusion reactor
- divertor
- fusion facilities
- fusion materials
- plasma material interactions
