// multi-utility computation suite · offline · instant · precise
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sci.radiation-dose-point-source Calculator
Calculates absorbed dose rate at a point from a gamma-emitting radionuclide including buildup factor correction for scattered radiation in a medium. Gamma buildup factor B > 1 accounts for scattered photons — in water at 10 mean free paths, B can reach 50–100 depending on photon energy.
Inputs
A Bq
Reference formula or conversion factor shown for context.
E Mev
Capacity to do work (J or kWh). Conserved — converts between forms but total stays constant in a closed system.
Mu En Cm2 G
Capacity to do work (J or kWh). Conserved — converts between forms but total stays constant in a closed system.
R M
Separation between two points or total path length. Check that units are consistent throughout the calculation.
Results
dose rate (mSv/hr)
Radiation dose received per unit time (Gy/hr or Sv/hr). Determines required shielding and exposure time limits.
photon fluence rate Φ (cm⁻²s⁻¹)
pH of the solution. Below 7: acidic. 7: neutral. Above 7: basic (alkaline).
absorbed dose rate (μGy/s)
Radiation dose received per unit time (Gy/hr or Sv/hr). Determines required shielding and exposure time limits.