High time-resolved, 2D imaging of type-I ELMs in DIII-D using a image-intensified CID camera

Autor:	N.H. Brooks, G.D. Porter, A.W. Leonard, J.G. Watkins, M.E. Fenstermacher, D. S. Gray, J.A. Boedo, M. Groth, C.J. Lasnier
Rok vydání:	2003
Předmět:	Nuclear and High Energy Physics DIII-D Chemistry Divertor Plasma Fusion power Pulse (physics) Computational physics Nuclear physics Nuclear Energy and Engineering Deuterium Particle General Materials Science Transient (oscillation)
Zdroj:	Journal of Nuclear Materials. :1071-1075
ISSN:	0022-3115
Popis:	The evolution of 2D emission profiles of D-alpha and C III during type-I edge localised modes (ELMs) has been investigated in DIII-D using a tangentially viewing gated, intensified charge-injected device (CID) camera. The measured CIII emission profiles indicate transient inner leg attachment with the arrival of the ELM heat pulse. The measured D-alpha emission profiles during an ELM cycle show enhanced deuterium recycling during the deposition of the ELM particle pulse at the target, which suggests the detachment of the divertor plasma from the target plates. Measurements taken in ELMy H-mode discharges at densities of 50% and 90% of the Greenwald density limit are compared utilising the CID camera system and a comprehensive set of other divertor diagnostics. An ELM models based on fluid and PIC simulations are used to discuss the observation on the response of the divertor plasma to the ELM heat and particle pulse.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::583c6a5a7b8b3050fbcb1d804a949105 https://doi.org/10.1016/s0022-3115(02)01539-8 Zobrazit plný text záznamu Full Text from ScienceDirect