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Absorbed dose

Definition of the noun Absorbed dose

What does Absorbed dose mean as a name of something?


  1. The amount of energy imparted by nuclear (or ionizing) radiation to unit mass of absorbing material. The unit is the rad.


Absorbed dose is a fundamental dose quantity D representing the mean energy imparted to matter per unit mass by ionizing radiation. The SI unit is joules per kilogram and its special name is gray. The non-SI CGS unit rad is sometimes also used, predominantly in the USA.

  • also known as 吸收劑量

Printed dictionaries and other books with definitions for Absorbed dose

Click on a title to look inside that book (if available):

Google previewUnderstanding Radiation Science (2006)

Basic Nuclear and Health Physics by James Mannie Shuler

Absorbed dose means the energy imparted by ionizing radiation per unit mass of irradiated material.

Google previewThe Toxicity of Plutonium, Americium and Curium (2013)

A Report Prepared Under Contract for the Commission of the European Communities Within Its Research and Development Programme on Plutonium Recycling in Light Water Reactors by J. C. Nenot, J. W. Stather

The average absorbed dose is a statistical concept, and does not take into account the energy dissipated in cells or groups of cells isolated in an organ. This fact is clearly incompatible with the very concept of a "hot particle", and this is ...

Google previewHealth Effects of Toxic Substances (1999)

by Ph. J. D. Malachowski, Goldberg, CIH, Arleen F.

For workers who deal with radioactive materials or radiation-producing machines , absorbed dose is an important concept. A person may be exposed to radiation, but not all of the radiation contacts the body, and not all radiation irradiating the ...

Google previewTechnical Assessment of the Man-in-Simulant Test Program (1997)

by National Research Council, Division on Engineering and Physical Sciences, Commission on Engineering and Technical Systems, Standing Committee on Program and Technical Review of the U.S. Army Chemical and Biological Defense Command

Absorbed dose refers to the amount of simulant that penetrates the skin and enters the regional tissue or blood. The effective dose is the amount that actually reaches and injures living cells. Because the outer layer of skin consists of dead ...

Google previewA Field Guide to Radiation (2012)

by Wayne Biddle

An old unit called the “rad” (for radiation absorbed dose) is still sometimes encountered in industry and government documents, especially in the United States. One gray equals 100 rads. The absorbed dose is a raw physical quantity and does ...

Google previewLeibel and Phillips Textbook of Radiation Oncology (2010)

Expert Consult by Richard Hoppe, Theodore L. Phillips, Mack Roach III

Absorbed Dose Whereas exposure, as defined earlier, is a property of the beam, absorbed dose is a measure of the energy deposited by the beam and absorbed by the target and is assumed to be closely related to the observed biologic ...

Google previewNuclear Technology (2004)

by Joseph A. Angelo

The absorbed dose is an important concept that leads to two closely related concepts, as shown in Figure 4-22. When nuclear energy is deposited primarily in a single organ (such as beta radiation from iodine- 131 in the thyroid), health ...

Google previewOral Radiology (2013)

Principles and Interpretation by Stuart C. White, Michael J. Pharoah

Absorbed dose is a measure of the total energy absorbed by any type ofionizing radiation per unit of mass of any type of matter. It varies with the type and energy of radiation and the type of matter absorbing the energy. The SI unit is the gray, ...

Google previewOral Radiology - E-Book (2014)

Principles and Interpretation by Stuart C. White, Michael J. Pharoah

Absorbed dose is a measure of the total energy absorbed by any type ofionizing radiation per unit of mass of any type of matter. It varies with the type and energy of radiation and the type of matter absorbing the energy. The SI unit is the gray, ...

Google previewWorld Congress on Medical Physics and Biomedical Engineering, June 7-12, 2015, Toronto, Canada (2015)

by David A. Jaffray

Absorbed dose is a nearly linear function of glandularity, independently of x-ray spectra and decrease with increased PMMA thickness. Taking into account 45 mm thick PMMA and 53 mm thick equivalent breast, the difference in absorbed ...

Google previewDental Management of the Medically Compromised Patient (2012)

by James W. Little, Donald Falace, Craig Miller, Nelson L. Rhodus

The absorbed dose is a measure of the energy absorbed ...

Google previewe-Study Guide for: Computed Tomography for Technologists by Lois R. Romans, ISBN 9780781777513 (2012)

by Cram101 Textbook Reviews

Absorbed dose: Absorbed dose is a measure of the energy deposited in a medium by ionizing radiation per unit mass.It is equalto the energy deposited per unit massof medium, which may be measured as joules per kilogram and represented ...

Google previewPhysics (2016)

by CTI Reviews

Absorbed dose is a measure ofthe energy deposited in a medium by ionizing radiation. It is equal to the energy deposited per unit mass of medium, and so has the unit J/kg, which is given the special name Gray (Gy). Note that the Absorbed ...

Google previewDental Radiology (2015)

by Andreas Fuhrmann

Radiation absorbed dose: The radiation absorbed dose is a measure of the amount of radiation absorbed by the body, referring to the effect of radiation on the different types of body tissues. Because the effects of the radiation vary by tissue ...

Google previewRutherford's Vascular Surgery (2014)

by Jack L. Cronenwett, K. Wayne Johnston

To quantify radiation for the purposes of risk assessment and setting standards and limits, the terms absorbed dose, equivalent dose, and effective dose are commonly used (Table 21-1). Absorbed Dose The absorbed dose is a measure of the ...

Google previewPrinciples and Applications of Radiological Physics (2011)

by Martin Vosper, Donald Graham, Paul Cloke

It may be easier to understand these curves if it is remembered that: ○ the kerma is a measure of the attenuation – the number of photoelectric and Compton events ○ the absorbed dose is a measure of the energy deposited in the medium by ...

Google previewRadiation Protection In Diagnostic X-Ray Imaging (2020)

by Euclid Seeram, Patrick C Brennan

Absorbed dose is a baseline quantity used in radiological protection and from which many other dose units we will consider below are derived. Absorbed dose simply measures the amount of energy that is imparted to media ...

Google previewDictionary of Space Technology (2013)

by Joseph Angelo

absorbed dose (symbol:D) When ionizing radiation passesthrough matter, some of itsenergyis imparted tothematter.The amount of energy absorbed ...

Google previewMosby's Pocket Dictionary of Medicine, Nursing & Health Professions - E-Book (2013)

by Mosby

dose-limiting recommendations, the absorbed dose equivalent limit of radiation exposure, which may vary for different body or organ exposures. For example, the absorbed dose ...

Google previewEnvironmental Engineering Dictionary (2005)

by C. C. Lee

absorbed dose, administered dose, applied dose, potential dose (EPA -97/12). Dosage/dose: The actual quantity of a chemical administered to an organism or to which it is exposed (Navy/Env-04). Dosage: The time integral of the ...

Google previewEncyclopedia of Imaging (2008)

by Albert L. Baert

The absorbed dose is the amount of energy absorbed per unit mass of an organ or tissue. The absorbed dose cannot be directly measured in patients. The absorbed dose is expressed in Gray (Gy). • The equivalent dose takes into account the ...

Google previewThe Facts on File Dictionary of Space Technology, Revised Edition (2009)

by Joseph A. Angelo

absorbed dose (symbol: D) When ionizing radiation passes through matter, some of its ENERGY is imparted to the matter.

Google previewLewis' Dictionary of Toxicology (1998)

by Robert Alan Lewis

absorbed dose. 1: the amount of a substance that penetrates an absorption barrier in an organism by means of a physical or biological process. 2: radiation absorbed dose. absorbed radiation dose. radiation ...

Google previewConcise Encyclopedia of Plastics (2012)

by D.V. Rosato, Marlene G. Rosato

radiation, absorbed dose The amount of energy im– parted by ionizing radiation per unit ...

Google previewMacmillan Dictionary of Chemistry (1987)

by D. Brynn Hibbert, A.M. James

absorbed dose. Energy per unit mass absorbed as a result of exposure (unit: GRAY, RAD). maximum permissible dose. Recommended upper limit of absorbed ...

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