Sievert
| Formula / Notation | H = D × w_R |
|---|---|
| Also Known As | Equivalent dose unit, effective dose unit, Sv, rem (older unit: 1 Sv = 100 rem) |
What is Sievert?
The sievert (Sv) is the SI unit of effective radiation dose — the measure of the biological effect of ionizing radiation on human tissue. It accounts not only for the absorbed dose (gray, Gy) but also for the biological effectiveness of different types of radiation through a radiation weighting factor (wR). 1 Sv = 1 J/kg (of equivalent dose). The sievert is used in radiation protection to assess health risk.
Formula & Notation
Other Names / Synonyms: Equivalent dose unit, effective dose unit, Sv, rem (older unit: 1 Sv = 100 rem)
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
The sievert (Sv) is the SI unit of effective radiation dose — the measure of the biological effect of ionizing radiation on human tissue. It accounts not only for the absorbed dose (gray, Gy) but also for the biological effectiveness of different types of radiation through a radiation weighting factor (wR). 1 Sv = 1 J/kg (of equivalent dose). The sievert is used in radiation protection to assess health risk.
Radiation protection dose limits (ICRP recommendations). Occupational dosimetry for radiation workers. Medical radiation dose assessment. Nuclear accident dose reconstruction. Radiation therapy planning (radiobiology). Environmental radiation monitoring.
Unit used in radiation safety — understanding dose limits prevents radiation injury. Acute radiation syndrome: >1 Sv whole body. Lethal dose: 4–5 Sv LD50. Chronic low-dose: stochastic cancer risk. Proper dosimetry essential for radiation worker protection.
The formula or notation for Sievert is: H = D × w_R