🛡️ Radiation Protection & Health Physics
Radiation Equivalent Dose (Sievert vs Rem) Converter
Convert biological equivalent and effective radiation doses ($H = D \cdot w_R$) between Sieverts ($\text{Sv}$), Millisieverts ($\text{mSv}$), Microsieverts ($\mu\text{Sv}$), and $\text{Rems}$ ($\text{rem}$).
✈️ Airline Flight (0.04 mSv)
🩻 Chest X-ray (0.1 mSv)
🌍 Natural Background (2.4 mSv)
☢️ Occupational Limit (20 mSv)
Input Equivalent Dose
Standard Millirems (mrem)
240.0 mrem
Millisieverts
2.400 mSv
Microsieverts
2,400 µSv
Rems (rem)
0.2400 rem
💡 Biological Dose Equivalence:
$$1\text{ Sievert (Sv)} = 100\text{ Rem} = 1,000\text{ mSv} \implies 1\text{ mSv} = 100\text{ mrem}$$
Understanding Radiation Equivalent Dose ($H$)
Equivalent dose ($H$) represents the biological stochastic damage risk of ionizing radiation, accounting for the radiation weighting factor ($w_R$):
- Formula: $$H = D \cdot w_R$$ ($w_R = 1$ for photons/electrons, $w_R = 20$ for alpha particles).
- SI Unit (Sievert): Named after Rolf Maximilian Sievert ($1\text{ Sv} = 1\text{ J/kg}$).
- Rem: Roentgen Equivalent Man ($1\text{ rem} = 0.01\text{ Sv} = 10\text{ mSv}$).