Plasma detachment in divertor tokamaks. (7th February 2018)

• Record Type: Journal Article
• Authors: Leonard, A W
• Is Part Of: Plasma physics and controlled fusion. Volume 60:Number 4(2018:Apr.)
• Publication Date: 2018-02-07
• Subjects: divertors -- detachment -- tokamaks -- divertor heat flux -- radiative divertor; Plasma (Ionized gases) -- Periodicals; Controlled fusion -- Periodicals; 530.44
• DOI: 10.1088/1361-6587/aaa7a9
• Languages: English
• ISSNs: 0741-3335

Abstract

Abstract: Observations of divertor plasma detachment in tokamaks are reviewed. Plasma detachment is characterized in terms of transport and dissipation of power, momentum and particle flux along the open field lines from the midplane to the divertor. Asymmetries in detachment onset and other characteristics between the inboard and outboard divertor plasmas is found to be primarily driven by plasma E ⃗ × B ⃗ drifts. The effect of divertor plate geometry and magnetic configuration on divertor detachment is summarized. Control of divertor detachment has progressed with a development of a number of diagnostics to characterize the detached state in real-time. Finally the compatibility of detached divertor operation with high performance core plasmas is examined.