What's el/la difference entre absorbed dose y equivalent dose?

Absorbed dose (Gy) measures energy deposited per mass—pure physics. Equivalent dose (Sv) = absorbed dose × radiation weighting factor, accounting for biological effectiveness. Alpha particles cause 20× mas damage than X-rays per gray, asi que 1 Gy alpha = 20 Sv.

Por que es radiation therapy given in fractions?

Fractionation (e.g., 2 Gy/dia for 30 dias) permite healthy tissue un/una repair entre doses while tumor tissue, with poorer repair mechanisms, accumulates damage. Total dose of 60 Gy seria be lethal si given at once, pero fractionated delivery es tolerable y effective.

How mucho radiation causes acute sickness?

Acute radiation syndrome begins alrededor de 0.5-1 Gy whole-body dose. Nausea starts at 1 Gy. Without treatment, 50% mortality occurs at 3-4 Gy (LD50/30). Above 6 Gy, survival without heroic intervention es unlikely. Local doses (like in therapy) son diferente desde whole-body.

Dosis de Radiación Absorbida Converter

Acerca de Radiation Absorbed Dose Conversion

Absorbed dose measures el/la energy deposited by ionizing radiation per unidad mass of material. Unlike exposure (cual measures ionization in air), absorbed dose applies un/una cualquier material—tissue, bone, metal, o plastic—y directly relates un/una potential biological damage. El/La mismo absorbed dose puede have diferente effects depending on radiation type, cual es por que equivalent dose (sieverts) fue developed for biological risk assessment. Absorbed dose tells tu el/la pure physics: como mucho energy fue deposited.

El/La SI unidad es el/la gray (Gy), equal un/una one joule per kilogramo, named after British radiobiologist Louis Harold Gray. El/La older unidad rad (radiation absorbed dose) es igual un/una 0.01 gray o 1 centigray. Absorbed dose es fundamental un/una radiation therapy planning, industrial radiography safety, y accident dosimetry. Medical linear accelerators deliver precisely calibrated doses in grays un/una tumor volumes while minimizing dose un/una surrounding tissue.

Our converter handles todo estandar absorbed dose unidades usado in medical physics y radiation protection.

Common Absorbed Dose Conversions

Desde	A	Multiplicar por
Gy	rad	100
rad	Gy	0.01
Gy	mGy	1,000
mGy	Gy	0.001
Gy	μGy	10⁶
Gy	cGy	100
cGy	Gy	0.01
rad	mrad	1,000

Absorbed Dose Unidad Reference

Gray (Gy) – El/La SI unidad of absorbed dose, equal un/una 1 joule of radiation energy deposited per kilogramo of material. 1 Gy = 100 rad = 100 cGy. Named after Louis Harold Gray (1905-1965), un/una British physicist quien developed el/la cavity ionization theory fundamental un/una radiation dosimetry. Typical radiation therapy delivers 1.8-2 Gy per fraction un/una tumors.

Centigray (cGy) – One-hundredth of un/una gray: 1 cGy = 0.01 Gy = 1 rad exactamente. Widely usado in radiation oncology porque eso conveniently es igual un/una el/la older rad unidad, allowing continuity with historical treatment protocols. Many treatment planning sistemas report doses in cGy.

Milligray (mGy) – One-thousandth of un/una gray: 1 mGy = 0.001 Gy = 0.1 rad. El/La typical scale for diagnostic imaging doses: chest X-ray ~0.1 mGy, CT scan 10-30 mGy, fluoroscopy procedures may accumulate hundreds of mGy un/una specific organs.

Rad (radiation absorbed dose) – El/La traditional CGS unidad of absorbed dose. 1 rad = 0.01 Gy = 1 cGy = 100 erg/g. Still encountered in older US regulations, historical records, y algunos industrial contexts. El/La name es un/una acronym for "radiation absorbed dose."

Microgray (μGy) – 10⁻⁶ Gy = 0.1 mrad. Used for muy low doses such as environmental monitoring, background radiation measurements, y algunos dental X-rays.

Erg per gramo (erg/g) – El/La fundamental CGS definition of absorbed dose. 1 rad = 100 erg/g; 1 Gy = 10,000 erg/g = 1 J/kg. Rarely usado in practice pero clarifies el/la physical meaning of absorbed dose.