Describe your knowledge of plasma equilibrium reconstruction algorithms for non-axisymmetric devices.

Sample interview questions: Describe your knowledge of plasma equilibrium reconstruction algorithms for non-axisymmetric devices.

Sample answer:

• Variational methods:

  • Minimize a free energy functional to obtain the equilibrium configuration.
  • Commonly used algorithms include the Grad-Shafranov equation and its extensions.

• Fixed boundary methods:

  • Solve the magnetohydrodynamic (MHD) equations with fixed boundary conditions.
  • Commonly used algorithms include the Grad-Shafranov equation solver (GSE) and its variants.

• Reconstruction from experimental data:

  • Use measurements from magnetic probes, flux loops, and other diagnostics to infer the equilibrium configuration.
  • Commonly used algorithms include the equilibrium reconstruction code (EQRC) and its variants.

• Hybrid methods:

  • Combine elements from different reconstruction algorithms to im… Read full answer

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