Radiation Absorbed Dose Converter
Convert between gray, rad, and other absorbed dose units for radiation dosimetry
About Radiation Absorbed Dose
Absorbed dose is the amount of energy deposited by ionizing radiation per unit mass of material. It is measured in gray (Gy) in the SI system and rad in the traditional system. This quantity is fundamental for radiation protection and medical applications.
Applications
- • Radiation therapy dosimetry
- • Radiation protection standards
- • Nuclear accident assessment
- • Medical imaging dose calculations
- • Occupational dose monitoring
- • Research radiation safety
Typical Absorbed Doses
- • Chest X-ray: ~0.1 mGy
- • CT scan: 10-50 mGy
- • Annual background: ~2-3 mGy
- • Occupational limit: 20 mGy/year
- • Radiation therapy: 1-80 Gy
- • Lethal dose: ~4-5 Gy (whole body)
Energy Deposition
Absorbed dose is defined as D = dE/dm, where dE is the energy deposited and dm is the mass. One gray equals one joule per kilogram (1 Gy = 1 J/kg). This physical quantity is independent of radiation type and provides a direct measure of energy transfer to tissue or material.