ARIES-AT has been optimized to a higher degree than previous studies

• Uses 99% flux surface rather than 95%

  • Higher _ values are stable

• More flexible pressure profile

  • Better bootstrap alignment and higher _
  • Allows elimination of HHFW, and use only LHCD for off-axis CD

• Higher triangularity

  • Allowed by elimination of inboard slot divertor
  • Higher _N and higher IP to give higher _

• Higher elongation

  • Allowed by moving stabilizing shell closer to plasma
  • Higher _N and higher IP to give higher _

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