ISQ
106 / 125
10-75

fast fission factor

URNurn:iso:std:iso:80000:-10:ed-2:en:item:10-75
Download RDF.jsonld.ttl
https://metanorma.github.io/isq-smart/quantities/part-10/t10-75
urn:iso:std:iso:80000:-10:ed-2:en:item:10-75
ISQ Identifiers
ISO
urn:iso:std:iso:80000:-10:ed-2:en:item:10-75
IEC
urn:iec:std:iec:80000-10:2019:::item:10-75
Designations
ENfast fission factor
FRfacteur de fission rapide
Symbol
φ
Notation systems
Rendered
φ
AsciiMath
varphi
LaTeX
\varphi

Definition

EN

in an infinite medium, the quotient of the mean number of neutrons produced by fission due to neutrons of all energies (ISO 80000-5: Thermodynamics) and the mean number of neutrons produced by fissions due to thermal neutrons only

FR

dans un milieu infini, quotient du nombre moyen de neutrons produits par les fissions dues aux neutrons de toutes les énergies (ISO 80000-5: Thermodynamics), par le nombre moyen de neutrons produits par les fissions dues aux neutrons thermiques seulement

Notes

EN

The class of neutrons must be specified, e.g. thermal.

FR

La classe des neutrons doit être spécifiée, par exemple thermique.

Concept HierarchyPendrill (2024)
1dimensionless quantitiesLevel 0 · Kind

Ontology

Class Hierarchy

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

Instance IRI

isq:t10-75
PropertyValue
rdf:type
dcterms:identifier
10-75
skosxl:prefLabel
"fast fission factor"@en
skosxl:altLabel
"varphi"@en
skos:definition
in an infinite medium, the quotient of the mean number of neutrons produced by fission due to neutrons of all energies (…
skos:note
The class of neutrons must be specified, e.g. thermal.
isq:hasUnit
isq:hasDimension
smart:hasBindingnessType
dcterms:isPartOf