Sample interview questions: How do you approach the assessment and control of plasma fast ion effects in fusion devices?
Sample answer:
Assessment of Plasma Fast Ion Effects
- Neutron diagnostics: Fast ion distribution functions can be inferred from the energy and spatial distribution of emitted neutrons.
- Gamma-ray spectroscopy: High-energy gamma rays produced by fast ion interactions with nuclei provide information about the ion energy and distribution.
- Time-of-flight spectroscopy: Fast ions can be detected by measuring their time-of-flight over a known distance.
- Synchrotron radiation: Fast ions emit synchrotron radiation, which can be analyzed to determine their energy and velocity distribution.
- Computational modeling: Numerical simulations using advanced plasma physics codes can predict fast ion distributions and quantify their effects.
Control of Plasma Fast Ion Effects
- Magnetic field shaping: By carefully designing the magnetic field configuration, the confinement and trajectories of fast ions can be controlled.
- Feedback systems: Real-time feedback systems can adjust the magnetic field or … Read full answer
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