In ohmically heated plasmas in COMPASS-D and other tokamaks, the L- to H-mode transition occurs gradually as the plasma density is increased, accompanied by the appearance of type III or transition ELMs, manifested by spikes on the Balmer-alpha line radiation of neutral hydrogen lasting typically a few 100 s, due to outflow of ionised material from the confinement zone. The size and spacing of the ELMs increase with density until finally an ‘ELM-free ’ H-mode is obtained. Various theoretical models have been developed to explain the L- to H-mode transition, invoking the stabilisation of the turbulence responsible for particle and energy transport across the edge of the confinement zone. In their simplest form, such models can be represented...
The effect of boundary conditions at the last closed magnetic surface (LCMS) on the formation of the...
A phenomenological model has been developed to clarify the role of the boundary configuration in the...
The term “shoulder formation” refers to an increase of the density decay length in the scrape-off la...
The nature of the L- to H-mode transition is re-examined on the basis of the more recent experimenta...
"A model of Edge Localized Modes (ELMS) in tokamaks is presented. The model of the L/H transition, w...
"A new refined model of the L-mode and H-mode transition in tokamaks is presented based on the bifu...
The exact nature of the physics governing the L-H transition seen in tokamak magnetic confinement ex...
The exact nature of the physics governing the L-H transition seen in tokamak magnetic confinement ex...
The authors' data indicate that the L-mode to H-mode transition in the DIII-D tokamak is associated ...
International audienceThe L to H mode transition occurs at a critical power which depends on ă vario...
International audienceThe L to H mode transition occurs at a critical power which depends on ă vario...
Oscilace v průběhu L-H přechodu z módu nízkého do vysokého udržení a profily Rey- noldsova napětí by...
The effect of boundary conditions at the last closed magnetic surface (LCMS) on the formation of the...
The results of flux-driven, two-fluid simulations in single-null configurations are used to investig...
H-mode theory is extended to include realistic effects such as charge-exchange momentum loss associa...
The effect of boundary conditions at the last closed magnetic surface (LCMS) on the formation of the...
A phenomenological model has been developed to clarify the role of the boundary configuration in the...
The term “shoulder formation” refers to an increase of the density decay length in the scrape-off la...
The nature of the L- to H-mode transition is re-examined on the basis of the more recent experimenta...
"A model of Edge Localized Modes (ELMS) in tokamaks is presented. The model of the L/H transition, w...
"A new refined model of the L-mode and H-mode transition in tokamaks is presented based on the bifu...
The exact nature of the physics governing the L-H transition seen in tokamak magnetic confinement ex...
The exact nature of the physics governing the L-H transition seen in tokamak magnetic confinement ex...
The authors' data indicate that the L-mode to H-mode transition in the DIII-D tokamak is associated ...
International audienceThe L to H mode transition occurs at a critical power which depends on ă vario...
International audienceThe L to H mode transition occurs at a critical power which depends on ă vario...
Oscilace v průběhu L-H přechodu z módu nízkého do vysokého udržení a profily Rey- noldsova napětí by...
The effect of boundary conditions at the last closed magnetic surface (LCMS) on the formation of the...
The results of flux-driven, two-fluid simulations in single-null configurations are used to investig...
H-mode theory is extended to include realistic effects such as charge-exchange momentum loss associa...
The effect of boundary conditions at the last closed magnetic surface (LCMS) on the formation of the...
A phenomenological model has been developed to clarify the role of the boundary configuration in the...
The term “shoulder formation” refers to an increase of the density decay length in the scrape-off la...