PPT Slide

Seed Current Drive on ARIES-AT

• Current drive is required in two regions:

- On-axis: provides bootstrap seed and controls q(0)

- Off-axis: controls qmin location and enhances b limit.

• Radio frequency systems are used for integrability to fusion power core.

• RF power launch location

spectra are selected for

maximum CD efficiency

and profile alignment.

• For a 1-GW ARIES-AT,

CD requirements are:

- On-axis: ICRF @ 68 MHz

4 MW

- Off-axis: LHW @ 3.6 GHz

22 MW

ARIES-AT:

bN = 6.0, IBS/I = 0.94

= 16 keV, Zeff = 1.8

g B = 6.3

On-axis

CD:

ICRF/FW

Off-axis

CD:

LHW

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