Sample interview questions: How would you approach the problem of plasma flow control in a non-axisymmetric experimental setup?
Sample answer:
- Understand the Plasma Flow Dynamics:
- Begin by characterizing the plasma flow in the non-axisymmetric setup using diagnostic techniques such as Langmuir probes, spectroscopy, and imaging.
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Identify key parameters like density, temperature, and velocity profiles to establish a baseline understanding of the plasma behavior.
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Analyze Magnetic Field Topology:
- Investigate the magnetic field configuration using magnetic field sensors or modeling tools.
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Determine the locations and strengths of field lines, null points, and separatrix surfaces to understand how they influence plasma flow
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Develop a Theoretical Model:
- Construct a theoretical model based on magnetohydrodynamics (MHD) equations or kinetic theory to describe the plasma flow in the non-axisymmetric geometry.
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Use numerical simulations to solve the model and predict the plasma behavior under various conditions
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Control Techniques:
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Explore different plasma control techniques, such as:
- Magnetic field shapin… Read full answer