Application of Townsend avalanche theory to tokamak startup by coaxial helicity injection
Sign Up to like & getrecommendations! Published in 2018 at "Nuclear Fusion"
DOI: 10.1088/1741-4326/aa8fa4
Abstract: Townsend avalanche theory is employed to model and interpret plasma initiation in NSTX by Ohmic heating and coaxial helicity injection (CHI). The model is informed by spatially resolved vacuum calculations of electric field and magnetic… read more here.
Keywords: townsend avalanche; avalanche theory; helicity injection; coaxial helicity ... See more keywords
Magnetic Turbulence and Current Drive during Local Helicity Injection.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.128.105001
Abstract: Magnetic measurements during dc helicity injection tokamak startup indicate Alfvénic turbulence in the injected current streams mediates magnetic relaxation and results in macroscopic plasma current drive. Localization of such activity to the injected current streams,… read more here.
Keywords: helicity injection; local helicity; helicity; turbulence ... See more keywords