A theoretical interpretation of the main scrape-off layer heat-flux width scaling for tokamak inner-wall limited plasmas

The International Tokamak Physics Activity Topical Group on scrape-off layer and divertor physics has amassed a database comprising hundreds of reciprocating Langmuir probe measurements of the main scrape-off layer heat-flux width lambda(q) in inner-wall limited discharges. We have carried out an analysis, based on turbulent transport theory, of the variation of lambda(q) with respect to the dimensionless plasma parameters. Restricting our analysis to circular plasmas, we find that a model based on non-linearly saturated turbulence can well reproduce the lambda(q) values found in the database.


Published in:
Plasma Physics and Controlled Fusion, 58, 8, 084003
Year:
2016
Publisher:
Bristol, Institute of Physics
ISSN:
1361-6587
Keywords:
Laboratories:




 Record created 2016-07-09, last modified 2018-09-13

n/a:
Download fulltext
PDF

Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)