Sample interview questions: How would you approach the problem of plasma density profile control in an experimental setup?
Sample answer:
Approaching the Problem of Plasma Density Profile Control
1. Determine Control Objectives:
- Define the desired plasma density profile shape, magnitude, and temporal evolution.
- Consider the specific experimental application and requirements.
2. Identify Controllable Parameters:
- Explore available methods for manipulating plasma density, such as:
- Neutral gas injection
- Ion cyclotron resonance heating
- Electron cyclotron resonance heating
3. Develop a Plasma Model:
- Create a theoretical or numerical model that accurately predicts plasma density evolution.
- Use the model to simulate different control scenarios and evaluate their effectiveness.
4. Implement a Feedback Control System:
- Design a real-time feedback control system that measures plasma density and adjusts control parameters accordingly.
- Use a suitable control algorithm (e.g…. Read full answer