Andrea Pavone

TL;DR: The Wendelstein 7-X superconducting stellarator was used for the first high-performance plasma operation as discussed by the authors, achieving densities of up to 4.5 GHz with helium gas fueling.

TL;DR: The Wendelstein 7-X (W7-X) as mentioned in this paper is a state-of-the-art ECRH-based system for plasma start-up and operation using electron cyclotron resonance heating (ECRH).

TL;DR: Wendelstein 7-X as discussed by the authors is the first comprehensively optimized stellarator aiming at good confinement with plasma parameters relevant to a future stellarator power plant, which achieved the highest triple product (6.5× 1019 keV m−3 s) achieved in a stellarator until now.

TL;DR: In this article, a detailed review of the physics basis for the DTE2 operational scenarios, including the fusion power predictions through first principle and integrated modelling, and the impact of isotopes in the operation and physics of DTE plasmas (thermal and particle transport, high confinement mode, Be and W erosion, fuel recovery, etc).

TL;DR: In this article, a significant improvement of plasma parameters in the optimized stellarator W7-X is found after injections of frozen hydrogen pellets, and the ion temperature in the post-pellet phase exceeds 3 keV with 5 MW of electron heating and the global energy confinement time surpasses the empirical ISS04 scaling.