Maximising D - T fusion power by optimising the plasma composition and beam choice in JET
Journal article, 2022
JET has a neutral beam injection as well as a radio frequency (RF) system for bringing plasmas to fusion-relevant temperatures. The former allows D as well as T birth energies of the order of 100-120 keV while the latter has the flexibility to heat a variety of populations by adjusting the antenna frequency. In this paper it is illustrated that-when the JET plasma is heated-the power harvested from D - T fusion reactions favours operating away from the 50-50 D - T balance and that exploiting pure D beams is more beneficial than combined D and T beams as well as pure T beams. Although beam heating dominates the overall behaviour in JET-as much more beam power than wave power can be coupled to the plasma-RF heating allows efficient heating of the very core.
NBI
optimisation
ICRH
baseline experiment
JET
modelling
Author
D. Van Eester
Koninklijke Militaire Universiteit
E. Lerche
Koninklijke Militaire Universiteit
P. Huynh
The French Alternative Energies and Atomic Energy Commission (CEA)
T. Johnson
Royal Institute of Technology (KTH)
Dimitriy Yadykin
Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics
Z. Stancar
Culham Science Centre
Jozef Stefan Institute
S. Aleiferis
Culham Science Centre
D. Frigione
University of Rome Tor Vergata
L. Garzotti
Culham Science Centre
P. Lomas
Culham Science Centre
C. Lowry
European Commission (EC)
M. Maslov
Culham Science Centre
Plasma Physics and Controlled Fusion
0741-3335 (ISSN) 1361-6587 (eISSN)
Vol. 64 5 055014Subject Categories
Fusion, Plasma and Space Physics
DOI
10.1088/1361-6587/ac5a09