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10-41

direction and energy distribution of cross section

URNurn:iso:std:iso:80000:-10:ed-2:en:item:10-41

https://metanorma.github.io/isq-smart/quantities/part-10/t10-41
urn:iso:std:iso:80000:-10:ed-2:en:item:10-41

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-10:ed-2:en:item:10-41

IEC

urn:iec:std:iec:80000-10:2019:::item:10-41

Designations

ENdirection and energy distribution of cross section

FRdistribution directionnelle et énergétique de la section efficace

Symbol

σ_{Ω, E}

Notation systems

Rendered

σ_{Ω, E}

AsciiMath

sigma_(ii(Omega),E)

LaTeX

\sigma_{\mathit{\Omega} , E}

Definition

partial differential quotient of $σ$ with respect to solid angle and energy, where $σ$ is the cross section (cross section <atomic physics>) for ejecting or scattering a particle into a solid angle $d Ω$ around a specified direction and with an energy between $E$ and $E + d E$ :

σ_{Ω, E} = \frac{\partial^{2} σ}{\partial Ω \partial E}

quotient différentiel partiel de $σ$ par rapport à l'angle solide et à l'énergie, où $σ$ est la section efficace (cross section <atomic physics>) pour l'émission ou la diffusion d'une particule dans un angle solide $d Ω$ autour d'une direction spécifiée et avec une énergie comprise entre $E$ et $E + d E$ :

σ_{Ω, E} = \frac{\partial^{2} σ}{\partial Ω \partial E}

Units

\frac{m^{2}}{J \cdot s r}

square metre per joule steradian

View related quantities →

k g^{- 1} \cdot s^{2}

second squared per kilogram

View related quantities →

Referenced by

direction distribution of cross section <atomic physics>

Concept HierarchyPendrill (2024)

1dimensionless quantitiesLevel 0 · Kind

Broader concepts

◇ dimensionless quantities

Ontology
isq:Quantity smart:TermEntry

Class Hierarchy

smart:Entity smart:TermEntryisq:Quantity

A physical quantity as defined in ISO/IEC 80000, with associated symbols, definitions, and units of measurement.

Instance IRI

isq:t10-41

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	10-41
skosxl:prefLabel	"direction and energy distribution of cross section <atomic physics>"@en
skosxl:altLabel	"sigma_(ii(Omega),E)"@en
skos:definition	partial differential quotient of stem:[sigma] with respect to solid angle and energy, where stem:[sigma] is the cross se…
isq:hasUnit	m^2/(Jsr) (square metre per joule steradian)kg^(-1)s^2 (second squared per kilogram)
isq:hasDimension	isq:Dimension
smart:hasBindingnessType	bindingness-type:normative
dcterms:isPartOf	isq:part-10

Related Entities

isq:QuantityShape isq:part-10 isq:Unit isq:Dimension isq:hasDimension smart:TermEntry