sci.radiation-dose-calculator Calculator
Calculates absorbed dose (Gy), dose equivalent (Sv), and effective dose from radiation type, activity, distance, and tissue weighting factors. The annual occupational dose limit is 20 mSv/year (ICRP) — natural background is ~2.4 mSv/year; fatal acute radiation syndrome threshold is ~3.5 Sv whole-body.
Inputs
- Activity Bq
- Reference formula or conversion factor shown for context.
- Distance M
- Separation between two points or total path length. Check that units are consistent throughout the calculation.
- Time Hours
- Duration of the process. Make sure units match the rate inputs (seconds, minutes, or hours).
- Gamma Constant
- Reference formula or conversion factor shown for context.
Results
- dose rate (µSv/hr)
- Radiation dose received per unit time (Gy/hr or Sv/hr). Determines required shielding and exposure time limits.
- total dose (µSv)
- The combined total across all inputs and components.
- annual limit (public)
- The result expressed on a per-year basis.
- annual limit (worker)
- The result expressed on a per-year basis.
- inverse square law
- Sample size or count used in the calculation.
- chest X-ray
- Reference formula or conversion factor shown for context.
radiation total source calculator rate