| Autor: |
Vekshina, Elena, Korzueva, Veronika, Rozhansky, Vladimir, Senichenkov, Ilya, Kaveeva, Elizaveta, Veselova, Irina, Coster, David, Subba, Fabio |
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| Zdroj: |
Contributions to Plasma Physics; Jun2022, Vol. 62 Issue 6, p1-10, 10p |
| Abstrakt: |
The edge transport modelling of 1GW EU‐DEMO burning plasma is performed by SOLPS‐ITER transport code with kinetic neutrals and full drifts and currents switched on. The efficiency of Ar and Ne as a divertor radiant is compared for such a condition. It is found from simulations that both Ar and Ne are suitable to reduce the target heat loads below 5MW/m2, and to achieve similar profiles at the OMP and along targets, however, Ne seeding rate should be 4.5 times bigger than that of Ar. Analysis of impurity transport results in that Ar is better compressed in divertor than Ne. With both radiants up to 70% of power flux to the computational domain is irradiated, core Zeff does not exceed 2.5, core radiation is negligible (less than 8.5% of income power), neutral deuterium pressure in the private flux region is 20 Pa. However, the electron temperature along targets does not reduce below 15 eV in the far scrape‐off layer, which may cause high level of tungsten sputtering. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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