Nuclear Reactor Inhour Reactivity Calculator
Nuclear reactor kinetics & control: Solve the 6-group delayed neutron Inhour equation relating reactivity ($\rho$, in $\text{pcm}$ and dollars $\$$), stable asymptotic reactor period ($T$), and prompt neutron generation time ($\Lambda$).
Fission Fuel & Kinetics Parameters
1 pcm = 10⁻⁵ Δk/k (Prompt crit = +650 pcm)
LWR: 20–50 μs; Fast reactor: ~0.5 μs
Reactor Period & Power Response Output
Stable Reactor Period T:
--
seconds (e-folding power time)
Reactivity in Dollars ($):
--
ρ / β ($1.00 = Prompt Critical)
Power Doubling Time T_d:
--
seconds = T · ln(2)
Effective Precursor Half-Life:
--
seconds average
| Prompt Critical Margin: | -- |
| Neutron Multiplication Factor k_eff: | -- |
| Reactivity in Cents: | -- |
| Operational Kinetics State: | -- |
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