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10-82

quality factor

URNurn:iso:std:iso:80000:-10:ed-2:en:item:10-82

https://metanorma.github.io/isq-smart/quantities/part-10/t10-82
urn:iso:std:iso:80000:-10:ed-2:en:item:10-82

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-10:ed-2:en:item:10-82

IEC

urn:iec:std:iec:80000-10:2019:::item:10-82

Designations

ENquality factor

FRfacteur de qualité

Symbol

Q

Notation systems

Rendered

Q

AsciiMath

Q

LaTeX

Q

Definition

factor in the calculation and measurement of dose equivalent (dose equivalent), by which the absorbed dose (absorbed dose) is to be weighted in order to account for different biological effectiveness of radiations, for radiation protection purposes

facteur intervenant dans le calcul et le mesurage de la dose équivalente (dose equivalent), permettant de pondérer la dose absorbée (absorbed dose) afin de prendre en compte la différence d'efficacité biologique des rayonnements, par exemple à des fins de radioprotection

Units

1

one

View related quantities →

Notes

$Q$ is determined by the linear energy transfer (linear energy transfer) for $Δ \to \infty$ , $L_{\infty}$ (often denoted as $L$ or $LET$ ), of charged particles passing through a small volume element at this point (the value of $L_{\infty}$ refers to water, not to tissue; the difference, however, is small). The relationship between $L$ and $Q$ is given in ICRP Publication 103 (ICRP, 2007).

$Q$ est déterminé par le transfert d'énergie linéique (linear energy transfer) pour $Δ \to \infty$ , $L_{\infty}$ (souvent désigné $L$ ou $LET$ ), des particules chargées passant par un petit élément de volume en ce point (la valeur de $L_{\infty}$ se rapporte à l'eau et non au tissu; la différence est cependant faible). La relation entre $L$ et $Q$ est donnée dans la Publication 103 de l'ICRP (ICRP, 2007).

Referenced by

dose equivalent linear energy transfer

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:t10-82

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	10-82
skosxl:prefLabel	"quality factor <ionizing radiation>"@en
skosxl:altLabel	"Q"@en
skos:definition	factor in the calculation and measurement of dose equivalent (<<t10-83.1>>), by which the absorbed dose (<<t10-81.1>>) i…
skos:note	stem:[Q] is determined by the linear energy transfer (<<t10-85>>) for stem:[ii(Delta)-> oo], stem:[L_(oo)] (often denote…
isq:hasUnit	1 (one)
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