rdf:type |
qudt:QuantityKind |
dcterms:description |
"Linear Attenuation Coefficient", also called the attenuation coefficient, narrow beam attenuation coefficient, or absorption coefficient, is a quantity that characterizes how easily a material or medium can be penetrated by a beam of light, sound, particles, or other energy or matter. |
qudt:applicableUnit |
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qudt:hasDimensionVector |
qkdv:A0E0L-1I0M0H0T0D0 |
qudt:informativeReference |
http://en.wikipedia.org/wiki/Attenuation_coefficient |
qudt:isoNormativeReference |
http://www.iso.org/iso/catalogue_detail?csnumber=31895 |
qudt:latexDefinition |
\(\mu = -\frac{1}{J}\frac{dJ}{dx}\), where \(J\) is the magnitude of the current rate of a beam of particles parallel to the \(x-direction\).
Or:
\(\mu(\lambda) = \frac{1}{\Phi_\lambda(\lambda)}\frac{d\Phi_\lambda(\lambda)}{dl}\), where \(\frac{d\Phi}{\Phi}\) is the relative decrease in the spectral radiant flux \(\Phi\) of a collimated beam of electromagnetic radiation corresponding to the wavelength \(\lambda\) during traversal of an infinitesimal layer of a medium and \(dl\) is the length traversed. |
qudt:latexSymbol |
\(\mu\) |
qudt:plainTextDescription |
“"Linear Attenuation Coefficient", also called the attenuation coefficient, narrow beam attenuation coefficient, or absorption coefficient, is a quantity that characterizes how easily a material or medium can be penetrated by a beam of light, sound, particles, or other energy or matter.” |
qudt:wikidataMatch |
http://www.wikidata.org/entity/Q86204330 |
rdfs:comment |
“Applicable units are those of quantitykind:LinearAttenuationCoefficient” |
rdfs:isDefinedBy |
http://qudt.org/3.1.10/vocab/quantitykind |
rdfs:label |
“Linear Attenuation Coefficient”@en |
