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TJ-II: Validation of neutral beam current drive: Difference between revisions
TJ-II: Validation of neutral beam current drive (view source)
Revision as of 16:00, 21 January 2022
, 21 January 2022→Description of the activity
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density control purposes. Plasmas with co-NBI (NBI1) and counter-NBI (NBI2), as well as plasmas with balanced injection (NBI1+NBI2), will be explored. The level of optimum ECRH power will be determined depending | density control purposes. Plasmas with co-NBI (NBI1) and counter-NBI (NBI2), as well as plasmas with balanced injection (NBI1+NBI2), will be explored. The level of optimum ECRH power will be determined depending | ||
on the operation conditions considering that moderate electron temperature (below 800 keV) are desirable to favour shorter stabilization times. Using off-axis ECRH injection may also help to reduce L/R time. | on the operation conditions considering that moderate electron temperature (below 800 keV) are desirable to favour shorter stabilization times. Using off-axis ECRH injection may also help to reduce L/R time. | ||
The measured toroidal current will be compared to the computational/numerical estimates of the toroidal current generated by both neutrals beams | The measured toroidal current will be compared to the computational/numerical estimates of the toroidal current generated by both neutrals beams. | ||
However, since both bootstrap and NBCD are contributing to the toroidal plasma current, the validation of NBCD needs first a numerical computation of the bootstrap contribution, ideally with a validated tool. | However, since both bootstrap and NBCD are contributing to the toroidal plasma current, the validation of NBCD needs first a numerical computation of the bootstrap contribution, ideally with a validated tool. | ||