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research article

Improved heat and particle flux mitigation in high core confinement, baffled, alternative divertor configurations in the TCV tokamak

Raj, Harshita
•
Theiler, C.  
•
Thornton, A.
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December 1, 2022
Nuclear Fusion

Nitrogen seeded detachment has been achieved in the tokamak a configuration variable (TCV) in alternative divertor configurations (ADCs), namely X-divertor and X-point target, with and without baffles in H-mode plasmas with high core confinement. Both ADCs show a remarkable reduction in the inter-ELM particle and heat fluxes to the target compared to the standard divertor configuration. 95%-98% of the inter-ELM peak heat flux to the target is mitigated as a synergetic effect of ADCs, baffling, and nitrogen seeded detachment. The effect of divertor geometry and baffles on core-divertor compatibility is investigated in detail. The power balance in these experiments is also investigated to explore the physics behind the observed reduction in heat fluxes in the ADCs.

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NF_ADC_HR_accepted.pdf

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Preprint

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http://purl.org/coar/version/c_71e4c1898caa6e32

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openaccess

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n/a

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2.76 MB

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Adobe PDF

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dc7b4d77f15e990b65c3daabbe29bcce

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