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Radiation Converter

Convert between units of radiation such as Grays, Rads, Roentgens, Becquerels, Curies, Sieverts, and Rems.

Result

rad

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Formula

Conversion Formula 

1 Gy
1.000000 Gy ÷ 0.01 → 100.000000 rad
About

About Radiation Units

Radiation units quantify various properties of exposure, absorbed dose, and activity:

  • Gray (Gy) quantifies absorbed radiation dose.
  • Rad (rad) is an older unit for absorbed dose.
  • Sievert (Sv) quantifies biological effect of radiation exposure.
  • Rem (rem) is an obsolete unit for dose equivalent.
  • Roentgen (R) quantifies ionizing radiation exposure.
  • Becquerel (Bq) quantifies radioactive activity (decays per second).
  • Curie (Ci) is a more conventional unit of radioactivity.
Units

Radiation Units

Measurement of radiation is essential in fields such as medical diagnostics, nuclear power, environmental assessment, and radiological protection. A variety of units exist to quantify radiation features like absorbed dose, source activity, and biological effects. Familiarity with these units ensures safety, regulatory compliance, and effective communication across scientific and industrial settings.

  • Gray (Gy): The SI unit of absorbed radiation dose, defined as one joule of radiation energy absorbed per kilogram of matter. Widely used in radiotherapy and radiation protection.
  • Rad (rad): A legacy unit of absorbed dose equal to 0.01 Gray. Still seen in some older literature and specific regions.
  • Roentgen (R): Measures ionizing radiation exposure in air, primarily for X-rays and gamma rays.
  • Becquerel (Bq): The SI unit of radioactivity, representing one nuclear disintegration per second.
  • Curie (Ci): An older unit of radioactivity equal to 3.7 × 1010 disintegrations per second, still used in some contexts, especially in the US.
  • Sievert (Sv): SI unit measuring the biological effect of ionizing radiation on human tissue, accounting for radiation type and impact.
  • Rem (rem): Historical unit of dose equivalent, approximately 0.01 Sievert, used in radiation protection and health physics.

Understanding and correctly using these units is vital for accurate radiation measurement, ensuring safety, and facilitating research and application in nuclear science and medicine.