unit of attenuation

См. также в других словарях:

• Attenuation coefficient — For attenuation coefficient as it applies to electromagnetic theory and telecommunications see propagation constant. For the mass attenuation coefficient , see the article mass attenuation coefficient. The attenuation coefficient is a quantity… …   Wikipedia

• Attenuation — This article is about attenuation in physics. For other uses, see Attenuation (disambiguation). In physics, attenuation (in some contexts also called extinction) is the gradual loss in intensity of any kind of flux through a medium. For instance …   Wikipedia

• unit — 1. One; a single person or thing. 2. A standard of measure, weight, or any other quality, by multiplications or fractions of which a scale or system is formed. 3. A group of persons or things considered as a whole because of mutual activities or… …   Medical dictionary

• attenuation — /euh ten yooh ay sheuhn/, n. 1. the act of attenuating or the state of being attenuated. 2. the process by which a virus, bacterium, etc., changes under laboratory conditions to become harmless or less virulent. 3. Physics. a decrease in a… …   Universalium

• Mass attenuation coefficient — The mass attenuation coefficient is a measurement of how strongly a chemical species or substance absorbs or scatters light at a given wavelength, per unit mass. In addition to visible light, mass attenuation coefficients can be defined for other …   Wikipedia

• Correction for attenuation — is a statistical procedure, due to Spearman (1904), to rid a correlation coefficient from the weakening effect of measurement error (Jensen, 1998), a phenomenon also known as regression dilution. In measurement and statistics, it is also called… …   Wikipedia

• ITU Model for Indoor Attenuation — The ITU Indoor Propagation Model, also known as ITU Model for Indoor Attenuation , is a radio propagation model that estimates the path loss inside a room or a closed area inside a building delimited by walls of any form. Suitable for appliances… …   Wikipedia

• Hounsfield unit — (HU)    a unit used in medical imaging (CT or MRI scanning) to describe the amount of x ray attenuation of each voxel (volume element) in the three dimensional image. The voxels are normally represented as 12 bit binary numbers, and therefore… …   Dictionary of units of measurement

• Nephelometric Turbidity Unit — Proben mit 5, 50 und 500 NTU Die Nephelometric Turbidity Unit (Nephelometrischer Trübungswert; NTU) ist eine in der Wasseraufbereitung verwendete Einheit für Trübungsmessungen in Flüssigkeiten. Sie ist die Einheit einer mit einem kalibrierten… …   Deutsch Wikipedia

• Land treatment unit — A land treatment unit (LTU) is a location in which land is treated, usually through bioremediation processes, to reduce the toxicity of the soil.LTUs are becoming more common as more sites needing clean up are identified. Land treatment units are …   Wikipedia

• μ [Greek letter mu] chemical potential; electrophoretic mobility; heavy chain of immunoglobulin M; linear attenuation coefficient; magnetic moment; mean; micro; micrometer; micron; mutation rate; permeability — Mache unit …   Medical dictionary