// multi-utility computation suite · offline · instant · precise
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sci.neutron-flux-power Calculator
Calculates neutron flux φ = nv (neutrons/cm²/s) in a reactor from power density and fission cross-section. A typical PWR fuel rod has φ ≈ 3 × 10¹³ n/cm²/s — this flux transmutes ²³⁵U to fission products and breeds ²³⁹Pu from ²³⁸U via neutron capture.
Inputs
Power Mw
Rate of energy transfer (W). P = V×I (electrical). P = F×v (mechanical). 1 horsepower ≈ 746 W.
Fission Energy Mev
Capacity to do work (J or kWh). Conserved — converts between forms but total stays constant in a closed system.
Core Volume M3
Three-dimensional space occupied (m³ or L). 1 m³ = 1,000 L.
Eta Fuel
Reference formula or conversion factor shown for context.
Results
fission rate (fissions/s)
The value at the specified point or condition.
power density (MW/m³)
Sample size or count used in the calculation.
neutron flux estimate (n/cm²/s)
The value at the specified point or condition.
thermal power
Reference formula or conversion factor shown for context.
typical PWR flux
Reference formula or conversion factor shown for context.