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Author(s)
Lower hybrid (LH) wave is not only convenient to
generate a flat or reversed magnetic shear profiles, but also helps one
to explore scenarios for steady-state tokamak operation with improved
confinement. Here with LSC code (lower hybrid simulation code), we
calculate density and temperature profiles, relative power of injected
wave and current wave lunch for two options of DEMO at the launched LH
wave frequency 5 GHz. Two plasma scenarios pertaining to two different
DEMO options, known as pulsed (option 1) and steady-state (option 2)
models, have been analyzed. We perceive that power deposition by using
lower hybrid wave injection mainly takes place near the edge of plasma
and approximately in more peripheral region for both of options but has
approximately higher efficiency for option 1 compared to option 2. About
current wave lunch, a major part of that is close to the plasma edge
for both of options. We have some considerable parts that reach to
internal layers for option 1 and then current drive mainly takes place
in a wider, more peripheral region for option 1.
KEYWORDS
Cite this paper
Choobini, A. , Naghidokht, A. and Karami, Z. (2014) Simulation of Lower Hybrid Current Drive for DEMO. World Journal of Nuclear Science and Technology, 4, 189-194. doi: 10.4236/wjnst.2014.44024.
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