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Enabling Optimized Divertor Design for Stellarators

POSTER

Abstract

In magnetic confinement fusion devices such as stellarators, the divertor is crucial for vessel protection and fuel exhaust removal. Even so, stellarator plasma optimization software to date has generally not included or accounted for divertor design. One approach to include the divertor in stellarator optimization is to incorporate an automated divertor design procedure that computes predetermined objective functions for compatibility and robustness. To address this, we develop a code that designs a rudimentary divertor according to the particle and heat exhaust patterns of a given plasma. This design process works by determining the location and optimal surface geometry for components using heat load predictions from diffusive field line tracing. These designs could then be used to inform optimization objectives within stellarator optimization codes and also serve as a basis for detailed engineering design. We present the latest progress in this code development and discuss potential formulations for optimization objectives.

Presenters

  • William Teague

    SULI Program Intern

Authors

  • William Teague

    SULI Program Intern

  • Kenneth C Hammond

    Princeton Plasma Physics Laboratory

  • David A Gates

    Princeton Plasma Physics Laboratory