Impact of electron-scale turbulence and multi-scale interactions in the JET tokamak. (28th September 2018)

• Record Type: Journal Article
• Authors: Bonanomi, N.; Mantica, P.; Citrin, J.; Goerler, T.; Teaca, B.
• Other Names: collab.
• Is Part Of: Nuclear fusion. Volume 58:Number 12(2018:Dec.)
• Publication Date: 2018-09-28
• Subjects: turbulent transport -- multi-scale gyrokinetic -- JET tokamak; Nuclear fusion -- Periodicals; 621.48405
• DOI: 10.1088/1741-4326/aae0a8
• Languages: English
• ISSNs: 0029-5515

Abstract

Abstract: Experimental observations in JET tokamak plasmas and gyrokinetic simulations point to an important role, for electron heat transport, of electron-scale instabilities and of their interaction with ion-scale instabilities. Since these effects are maximized for strong electron heating and ion-scale modes close to marginal stability, these findings are of high relevance for ITER plasmas, featuring both conditions. Gyrokinetic and quasi-linear transport models accounting for multi-scale effects are assessed against JET experimental results.