https://doi.org/10.1140/epjd/e2009-00184-7
Particle and power balance in fusion plasma with different fuelling scenarios and helium ash removal
1
Kharkiv V.N. Karazin National University, Svobody sq. 4, 61077 Kharkiv, Ukraine
2
Institute of Plasma Physics, National Science Center “Kharkiv Institute of Physics and Technology”, Akademicheskaya st. 1, 61108 Kharkiv, Ukraine
Corresponding author: a alex.eremin@gmail.com
Received:
15
September
2008
Revised:
14
January
2009
Published online:
23
June
2009
The time evolution of plasma density, temperature and thermal alpha-particle density are considered through modelling of helium ash removal. It is shown that a slow variation of the helium ash density with time can be used for operation path changing in deuterium-tritium fusion plasma. Also, the effect of different fuelling rate scenarios on the plasma operation path and steady state parameters is considered. The temporal evolution of the operating point during the ignition access and ignited operation phases are analyzed analytically and numerically. The main target of the study is the optimization of the plasma operation scenario in future fusion reactors including ITER.
PACS: 52.55.Dy – General theory and basic studies of plasma lifetime, particle and heat loss, energy balance, field structure, etc. / 52.55.Pi – Fusion products effects / 28.52.Cx – Fueling, heating and ignition
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2009
