Tokamak Plasma Control

Fusion reactors require real-time plasma control at millisecond timescales. Achieving net-positive energy requires precise feedback.

Control System

```python class PlasmaController: def init(self): self.target_temp = 150_000_000 # 150 million Kelvin self.magnetic_field = 5.3 # Tesla

def control_loop(self, dt=0.001):  # 1ms timestep
    while self.is_running:
        plasma_state = self.measure_plasma()

        if plasma_state.temp < self.target_temp:
            self.increase_heating()

        if self.detect_instability(plasma_state):
            self.emergency_shutdown()

        self.adjust_magnetic_field(plasma_state)
        time.sleep(dt)

``` Milestone: Net-positive energy achieved 2027 Related: Post-Scarcity Collapse (2058)