Preset
Control Rods
Coolant
Fuel
Statistics
1.000
k-effective
1000
Power (MW)
320
Core Temp (°C)
0
Neutron Gen
Criticality (k_eff):
k < 1 → subcritical (power drops)
k = 1 → critical (steady state)
k > 1 → supercritical (power rises)
Doppler broadening: higher temperature → U-238 absorbs more neutrons → negative feedback keeps reactor stable.
k < 1 → subcritical (power drops)
k = 1 → critical (steady state)
k > 1 → supercritical (power rises)
Doppler broadening: higher temperature → U-238 absorbs more neutrons → negative feedback keeps reactor stable.