Structure of the classical scrape-off layer of a tokamak. (11th January 2018)

• Record Type: Journal Article
• Authors: Rozhansky, V; Kaveeva, E; Senichenkov, I; Vekshina, E
• Is Part Of: Plasma physics and controlled fusion. Volume 60:Number 3(2018:Mar.)
• Publication Date: 2018-01-11
• Subjects: SOL width -- neoclassical flows -- plasma edge modeling; 52.25.Fi -- 52.55.Fa; Plasma (Ionized gases) -- Periodicals; Controlled fusion -- Periodicals; 530.44
• DOI: 10.1088/1361-6587/aaa11a
• Languages: English
• ISSNs: 0741-3335

Abstract

Abstract: The structure of the scrape-off layer (SOL) of a tokamak with little or no turbulent transport is analyzed. The analytical estimates of the density and electron temperature fall-off lengths of the SOL are put forward. It is demonstrated that the SOL width could be of the order of the ion poloidal gyroradius, as suggested in Goldston (2012 Nuclear Fusion 52 013009). The analytical results are supported by the results of the 2D simulations of the edge plasma with reduced transport coefficients performed by SOLPS-ITER transport code.