About: Barn

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An Entity of Type : http://qudt.org/schema/qudt/Unit, within Data Space : foodie-cloud.org, foodie-cloud.org associated with source document(s)

Attributes	Values
type	Unit
label	Barn (en)
isDefinedBy	QUDT VOCAB Units of Measure Release 2.1.33
Description	A barn (symbol b) is a unit of area. Originally used in nuclear physics for expressing the cross sectional area of nuclei and nuclear reactions, today it is used in all fields of high energy physics to express the cross sections of any scattering process, and is best understood as a measure of the probability of interaction between small particles. A barn is defined as \(10^{-28} m^2 (100 fm^2)\) and is approximately the cross sectional area of a uranium nucleus. The barn is also the unit of area used in nuclear quadrupole resonance and nuclear magnetic resonance to quantify the interaction of a nucleus with an electric field gradient. While the barn is not an SI unit, it is accepted for use with the SI due to its continued use in particle physics. (http://qudt.org/schema/qudt/LatexString)
http://qudt.org/schema/qudt/dbpediaMatch	dbpedia:Barn
http://qudt.org/sc...asDimensionVector	http://qudt.org/vocab/dimensionvector/A0E0L2I0M0H0T0D0
http://qudt.org/sc...ormativeReference	http://en.wikipedia.org/wiki/Barn?oldid=492907677 http://en.wikipedia.org/wiki/Barn_(unit)
http://qudt.org/schema/qudt/symbol	b
has quantity kind	area
http://qudt.org/sc...versionMultiplier	0.000000 (xsd:double)
http://qudt.org/schema/qudt/iec61360Code	0112/2///62720#UAB297
http://qudt.org/schema/qudt/omUnit	barn
http://qudt.org/schema/qudt/ucumCode	b (http://qudt.org/schema/qudt/UCUMcs)
http://qudt.org/schema/qudt/udunitsCode	b
http://qudt.org/sc...t/uneceCommonCode	A14
is http://qudt.org/sc...dt/applicableUnit of	area Atomic Attenuation Coefficient Cartesian Area Cross-section Cross-sectional Area Diffusion Area Equivalent absorption area Exit Plane Cross-sectional Area Macroscopic Cross-section Macroscopic Total Cross-section Migration Area Nozzle Throat Cross-sectional Area Slowing-Down Area Total Cross-section

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