Synergistic ICRH and NBI heating for fast ion generation and maximising fusion rate in mixed plasmas at jet

JET Contributors

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Résumé

The studies of recent JET experiments in H/D≈0.85/0.15 plasma (2.9T/2MA) in which neutron rate was enhanced by applying 2.5MW of ICRH using D-(DNBI)-H three-ion scheme are reported. An extensive analysis of this novel heating scenario has been carried out by means of integrated TRANSP/TORIC modelling, and a comprehensive validation of the computed Fast Ion Distribution Function (FI DF) with a range of fast ion diagnostics available at JET is presented. The predicted acceleration of D Neutral Beam Injection (NBI) ions beyond their injection energies and the associated changes in FI DF by RF waves are found to be in good agreement with measured neutron yield and TOFOR neutron spectrometer measurements, as well as with multi-channel neutron camera observations and neutral particle analyser diagnostic. An outlook of the possible applications of the developed technique for future DTE2 studies on JET has been highlighted. Controlled acceleration of TNBI ions in D-rich and DNBI ions in T-rich plasmas to optimal energies can be applied to maximise BT fusion rates and contribute to the success of future DT experiments at JET and ITER as illustrated in this study.

langue originaleAnglais
titre23rd Topical Conference on Radiofrequency Power in Plasmas
rédacteurs en chefPaul T. Bonoli, Robert I. Pinsker, Xiaojie Wang
EditeurAmerican Institute of Physics Inc.
ISBN (Electronique)9780735420137
Les DOIs
étatPublié - 16 sept. 2020
Evénement23rd Topical Conference on Radiofrequency Power in Plasmas - Hefei, Chine
Durée: 14 mai 201917 mai 2019

Série de publications

NomAIP Conference Proceedings
Volume2254
ISSN (imprimé)0094-243X
ISSN (Electronique)1551-7616

Une conférence

Une conférence23rd Topical Conference on Radiofrequency Power in Plasmas
Pays/TerritoireChine
La villeHefei
période14/05/1917/05/19

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