Individual:
http://rdf.iit.demokritos.gr/2014/iaeaSafetyGlossary/id206
Annotations (2)
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nreo:canonicalLabel "dose quantities" (en)
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skos:definition "<i><b>absorbed dose, D.</b></i> The fundamental dosimetric quantity 'D', defined as:<br/>
'e'<br/>
'D '= d<br/>
d'm'<br/>
where d'e'– is the mean energy imparted by 'ionizing radiation' to matter in a <br/>volume element and d'm' is the mass of matter in the volume element. <br/>(From Ref. [1].)<br/>
The energy can be averaged over any defined volume, the average 'dose' being equal <br/>to the total energy imparted in the volume divided by the mass in the volume.<br/>'Absorbed dose' is defined at a point; for the average 'dose' in a tissue or organ, <br/>see 'organ dose'.<br/>Unit: 'gray (Gy)', equal to 1 J/kg (formerly, the 'rad' was used).<br/>
<i><b>collective effective dose, S.</b></i> The total 'effective dose' 'S' to a population, <br/>defined as:<br/>
'S '=<br/>
'E N'<br/>
 'i i'<br/>
'i'<br/>
where 'E ' is the average 'effective dose' in the population subgroup 'i' and 'N ' is the <br/>
'i'<br/>
'i'<br/>
number of individuals in the subgroup. It can also be defined by the integral:<br/>
•<br/>
d'N'<br/>
'S '=<br/>
'E'<br/>
d'E'<br/>
Ú0 d'E'<br/>
where <br/>
d'N 'd'E'<br/>
d'E'<br/>
is the number of individuals receiving an 'effective dose' between 'E' and <br/>'E' + d'E'. 8<br/>
The 'collective effective dose' 'S ' committed by an 'event', a deliberate action <br/>
k<br/>
or a finite portion of a 'practice' k is given by:<br/>
'S '= 'S t 'd't'<br/>
k<br/>
k<br/>
Ú ( )<br/>
'·'<br/>
where 'S ' is the 'collective effective dose' 'rate' at time 't' caused by 'k'. (From <br/>
k<br/>
Ref. [1].)<br/>
<i><b>committed effective dose, E</b></i><b>(</b>'t'<b>). </b>The quantity 'E'('t'), defined as:<br/>
'E'('t ') =<br/>
'w H '('t ')<br/>
 T T<br/>
T<br/>
8 Although the upper limit for the integral could in principle be infinite, in most <br/>
'assessments' of 'collective dose' the component associated with 'individual doses' or <i>dose <br/>rates</i> that are higher than the thresholds for the induction of 'deterministic effects' would <br/>be considered separately.<br/>
where 'H '(τ) is the 'committed equivalent dose' to tissue T over the <br/>
T<br/>
integration time τ' 'and 'w ' is the 'tissue weighting factor' for tissue T. When <br/>
T<br/>
τ is not specified, it will be taken to be 50 years for adults and the time to <br/>age 70 years for 'intakes' by children. (From Ref. [1].)<br/>
<i><b>committed equivalent dose, H </b></i><b>(</b>'t'<b>).</b> The quantity 'H '('t'), defined as:<br/>" (en)
Types (1)
Usage (20)