Modelling and theoretical understanding of the isotope effect from JET experiments in view of reliable predictions for deuterium-tritium plasmas

TitleModelling and theoretical understanding of the isotope effect from JET experiments in view of reliable predictions for deuterium-tritium plasmas
Publication TypeJournal Article
Year of Publication2022
AuthorsJ. Garcia, F.J. Casson, B A. Navarro, N. Bonanomi, J. Citrin, D. King, P. Mantica, A. Mariani, M. Marin, S. Mazzi, E. Viezzer, JET Contributors
JournalPlasma Physics and Controlled Fusion
Volume64
Issue5
Pagination054001
Abstract

This is an overview of the theoretical understanding of the so-called isotope effect in JET hydrogen versus deuterium plasmas. Experimentally, weak to moderate deviations from naive GyroBohm scaling expectations are found for the core heat transport in L and H-modes. The physical mechanisms behind such deviations are analysed in the framework of the gyrokinetic theory. In the case of particle transport, isotope effects are mostly found in the plasma edge where the density is higher in deuterium than in hydrogen plasmas. In general, both the thermal energy and particle confinement increase with increasing main ion mass. A comparison of such results to expectations for deuterium-tritium plasmas in ITER is discussed.

DOI10.1088/1361-6587/ac53ef
Division

FP

Department

IMT

PID

7178624af217ff76a8d848abe1bd83d8

Alternate TitlePlasma Phys. Control. Fusion

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