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31 relations: Absorbed dose, Acute radiation syndrome, Becquerel, Centimetre–gram–second system of units, Curie, Effective dose (radiation), Erg, Erythema, European Union, European units of measurement directives, F-factor (conversion factor), Gram, Gray (unit), Herbert Parker (scientist), International Commission on Radiological Protection, International Committee for Weights and Measures, Louis Harold Gray, National Institute of Standards and Technology, Order of magnitude, Radian, Radiation, Radiation exposure, Radiation therapy, Relative biological effectiveness, Roentgen (unit), Roentgen equivalent man, SI derived unit, Sievert, Stochastic, William Valentine Mayneord, Wood River Junction, Rhode Island.
Absorbed dose
Absorbed dose is a measure of the energy deposited in a medium by ionizing radiation.
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Acute radiation syndrome
Acute radiation syndrome (ARS) is a collection of health effects that are present within 24 hours of exposure to high doses of ionizing radiation.
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Becquerel
The becquerel (symbol: Bq) is the SI derived unit of radioactivity.
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Centimetre–gram–second system of units
The centimetre–gram–second system of units (abbreviated CGS or cgs) is a variant of the metric system based on the centimetre as the unit of length, the gram as the unit of mass, and the second as the unit of time.
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Curie
The curie (symbol Ci) is a non-SI unit of radioactivity originally defined in 1910.
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Effective dose (radiation)
Effective dose is a dose quantity in the International Commission on Radiological Protection (ICRP) system of radiological protection.
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Erg
The erg is a unit of energy and work equal to 10−7 joules.
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Erythema
Erythema (from the Greek erythros, meaning red) is redness of the skin or mucous membranes, caused by hyperemia (increased blood flow) in superficial capillaries.
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European Union
The European Union (EU) is a political and economic union of EUnum member states that are located primarily in Europe.
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European units of measurement directives
As of 2009, the European Union had issued two units of measurement directives: In 1971 it issued Directive 71/354/EEC which required EU member states to standardise on the International System of Units (SI) rather than use a variety of CGS and MKS units then in use.
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F-factor (conversion factor)
The F-factor, in diagnostic radiology, is the conversion factor between exposure and absorbed dose.
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Gram
The gram (alternative spelling: gramme; SI unit symbol: g) (Latin gramma, from Greek γράμμα, grámma) is a metric system unit of mass.
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Gray (unit)
The gray (symbol: Gy) is a derived unit of ionizing radiation dose in the International System of Units (SI).
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Herbert Parker (scientist)
Herbert M. Parker (13 April 1910, Accrington – 5 March 1984, Richland, Washington) was an English, and American immigrant, medical physicist.
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International Commission on Radiological Protection
The International Commission on Radiological Protection (ICRP) is an independent, international, non-governmental organization, with the mission to provide recommendations and guidance on radiation protection.
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International Committee for Weights and Measures
The International Committee for Weights and Measures (abbreviated CIPM from the French Comité international des poids et mesures) consists of eighteen persons, each of a different nationality, from Member States of the Metre Convention (Convention du Mètre) appointed by the General Conference on Weights and Measures (CGPM) whose principal task is to promote worldwide uniformity in units of measurement by taking direct action or by submitting proposals to the CGPM.
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Louis Harold Gray
Louis Harold Gray (10 November 1905 – 9 July 1965) was an English physicist who worked mainly on the effects of radiation on biological systems, inventing the field of radiobiology as he went.
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National Institute of Standards and Technology
The National Institute of Standards and Technology (NIST) is one of the oldest physical science laboratories in the United States.
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Order of magnitude
An order of magnitude is an approximate measure of the number of digits that a number has in the commonly-used base-ten number system.
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Radian
The radian (SI symbol rad) is the SI unit for measuring angles, and is the standard unit of angular measure used in many areas of mathematics.
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Radiation
In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium.
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Radiation exposure
Radiation exposure is a measure of the ionization of air due to ionizing radiation from photons; that is, gamma rays and X-rays.
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Radiation therapy
Radiation therapy or radiotherapy, often abbreviated RT, RTx, or XRT, is therapy using ionizing radiation, generally as part of cancer treatment to control or kill malignant cells and normally delivered by a linear accelerator.
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Relative biological effectiveness
In radiobiology, the relative biological effectiveness (often abbreviated as RBE) is the ratio of biological effectiveness of one type of ionizing radiation relative to another, given the same amount of absorbed energy.
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Roentgen (unit)
The roentgen or röntgen (symbol R) is a legacy unit of measurement for the exposure of X-rays and gamma rays.
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Roentgen equivalent man
The roentgen equivalent man (or rem) is an older, CGS unit of equivalent dose, effective dose, and committed dose which are measures of the health effect of low levels of ionizing radiation on the human body.
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SI derived unit
SI derived units are units of measurement derived from the seven base units specified by the International System of Units (SI).
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Sievert
The sievert (symbol: SvNot be confused with the sverdrup or the svedberg, two non-SI units that sometimes use the same symbol.) is a derived unit of ionizing radiation dose in the International System of Units (SI) and is a measure of the health effect of low levels of ionizing radiation on the human body.
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Stochastic
The word stochastic is an adjective in English that describes something that was randomly determined.
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William Valentine Mayneord
William Valentine Mayneord, CBE FRS (14 February 1902 – 10 August 1988) was a British radiologist and pioneer in the field of medical physics.
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Wood River Junction, Rhode Island
Wood River Junction is a small village in the town of Richmond, Rhode Island in the United States.
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Attorad, Centirad, Decarad, Decirad, Exarad, Femtorad, Gigarad, Hectorad, Kilorad, Megarad, Microrad, Nanorad, Petarad, Picorad, Rad (Units of radiation dose), Rad (radiation), Rad unit, Terarad, Yoctorad, Yottarad, Zeptorad, Zettarad.
References
[1] https://en.wikipedia.org/wiki/Rad_(unit)
