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10-79

reactor time constant

URNurn:iso:std:iso:80000:-10:ed-2:en:item:10-79

https://metanorma.github.io/isq-smart/quantities/part-10/t10-79
urn:iso:std:iso:80000:-10:ed-2:en:item:10-79

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-10:ed-2:en:item:10-79

IEC

urn:iec:std:iec:80000-10:2019:::item:10-79

Designations

ENreactor time constant

FRconstante de temps du réacteur

Symbol

T

Notation systems

Rendered

T

AsciiMath

T

LaTeX

T

Definition

duration (ISO 80000-3: Space and time) required for the neutron fluence rate (particle fluence rate) in a reactor to change by the factor $e$ when the fluence rate is rising or falling exponentially

durée (ISO 80000-3: Space and time) nécessaire pour que le débit de fluence de neutrons (particle fluence rate) dans un réacteur varie dans le rapport $e$ lorsque le débit de fluence augmente ou diminue exponentiellement

Units

s

second

View related quantities →

Notes

Also called reactor period.

Appelée aussi période du réacteur.

Concept HierarchyPendrill (2024)

Ttime-type quantitiesLevel 0 · Kind

Broader concepts

◇ time-type quantities

Characterizes

● neutron

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:t10-79

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	10-79
skosxl:prefLabel	"reactor time constant"@en
skosxl:altLabel	"T"@en
skos:definition	duration (<<iso80000-3>>) required for the neutron fluence rate (<<t10-44>>) in a reactor to change by the factor stem:[…
skos:note	Also called reactor period.
isq:hasUnit	s (second)
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