Radiação

Sobre Radiação Unidade Conversão

Radiação medição involves several related but distinct quantities: activity (como much radioactive decay—disintegrations per segundo), absorbed dose (energy deposited in tissue—joules per kilogram), e equivalent dose (biological effect accounting for radiation type). Cada quantity tem its own unidades, e confusing them é a comum error. Atividade tells you sobre o source; dose tells you sobre o effect on tissue.

O SI unidades são becquerel (Bq) for activity, gray (Gy) for absorbed dose, e sievert (Sv) for equivalent dose. Older unidades (curie, rad, rem) remain in widespread use, especially in o United States e in older literature. Knowing ambos SI e traditional unidades é essential for interpreting safety documentation, medical records, e regulatory requirements across diferente countries e eras.

Our converter handles todos padrão radiation medição unidades for activity, dose, e exposure.

Comuns Radiação Unidade Conversions

Radiação Referência de Unidades

Becquerel (Bq) – O SI unidade of radioactivity, named after Henri Becquerel. 1 Bq = 1 nuclear decay per segundo. Atividade measures source strength—a high-Bq source undergoes muitos decays but may pose low risk if emissions são weak ou bem-shielded. Comuns multiples: kBq, MBq, GBq.

Curie (Ci) – Historical activity unidade, originally o activity of 1 gram of radium-226. 1 Ci = 3.7 × 10¹⁰ Bq = 37 GBq exatamente. Named after Marie e Pierre Curie. Ainda padrão in US medical isotopes (mCi) e industrial radiography. Comuns multiples: pCi, nCi, μCi, mCi.

Gray (Gy) – O SI unidade of absorbed dose, medindo energy deposited per unidade mass. 1 Gy = 1 J/kg. Named after Louis Harold Gray. O gray applies to qualquer material—mesmo energy deposition can têm diferente biological effects depending on radiation type. Diagnostic procedures: μGy to mGy; radiation therapy: Gy.

Rad – Traditional absorbed dose unidade. 1 rad = 0.01 Gy = 100 erg/g. O name stands for "Radiação Absorvida Dose." Ainda encountered in older US regulations, historical documents, e alguns industrial contexts.

Sievert (Sv) – O SI unidade of equivalent e effective dose, accounting for radiation type via weighting factors. 1 Sv = 1 Gy × radiation weighting factor (wR): 1 for X-rays/gamma, 20 for alpha particles. Named after Rolf Sievert. O prático unidade for radiation protection e safety limits.

Rem – Traditional equivalent dose unidade. 1 rem = 0.01 Sv = 10 mSv. "Roentgen Equivalente Man." Comuns in US nuclear indústria dose records. Occupational limits são often expressed in rem/year alongside Sv equivalents.

Saiba Mais

Explore nossos guias detalhados sobre este tema:

• Radiação Unidades Explained
• Types of Radiação
• Radiação Safety Limits