COMPASS-U plasma-facing components: Towards a full W first wall coverage

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F25%3A00617644" target="_blank" >RIV/61389021:_____/25:00617644 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0920379625000195?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0920379625000195?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.fusengdes.2025.114815" target="_blank" >10.1016/j.fusengdes.2025.114815</a>

Result language
angličtina
Original language name
COMPASS-U plasma-facing components: Towards a full W first wall coverage
Original language description
This paper describes the plasma-facing components of tokamak COMPASS-U and how a 100 % tungsten coverage of plasma-wall interaction areas is achieved with passively cooled, bulk tungsten tiles in high heat flux regions and W-coated Inconel 718 tiles elsewhere. The choice of Inconel 718 was motivated by the future foreseen plasma operation up to 500 °C as Inconel 718 still keeps high mechanical properties up to 700 °C. In order to prevent the physical sputtering of the different elements that compose this Ni-based superalloy, a thin tungsten coating is applied by physical vapor deposition. COMPASS-U plasma-facing components consist of 1) tungsten tiles: in a closed divertor at the bottom of the machine and on 8 inner & 2 outer guard limiters to start/end plasma discharges (inner) and to cope with runaway electrons (inner & outer), and 2) W-coated tiles: on the inner wall (the tiles are slightly recessed between the inner guard limiters and cover the entire central column), on 8 discrete outer wall limiters, on the two in-vessel stabilizing coils, and finally on the temporary initial open divertor located at the top of the vacuum vessel.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10304 - Nuclear physics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)