Individual:
http://rdf.iit.demokritos.gr/2014/iaeaSafetyGlossary/id376
Annotations (2)
-
nreo:canonicalLabel "linear–no threshold (LNT) hypothesis" (en)
-
skos:definition "The hypothesis that the 'risk' of 'stochastic effects' is directly proportional to <br/>
the 'dose' for all levels of 'dose' and 'dose rate' (below those at which <i>deterministic <br/>effects</i> occur).<br/>
I.e. that any non-zero 'dose' implies a non-zero 'risk' of 'stochastic effects'.<br/>This is the working hypothesis on which the IAEA’s 'safety standards' (and the <br/>International Commission on Radiological Protection’s recommendations) <br/>are based. It is not proven — indeed it is probably not provable — for low <br/>'doses' and 'dose rates', but it is considered the most radiobiologically defensible <br/>assumption on which to base 'safety standards'. Other hypotheses conjecture <br/>that the 'risk' of 'stochastic effects' at low 'doses' and/or 'dose rates' is:<br/>(a) Greater than that implied by the 'linear–no threshold hypothesis'<br/>
(superlinear hypotheses);<br/>
(b) Less than that implied by the 'linear–no threshold hypothesis' (sublinear <br/>
hypotheses);<br/>
(c) Zero below some threshold value of 'dose' or 'dose rate' (threshold <br/>
hypotheses); or<br/>
(d) Negative below some threshold value of 'dose' or 'dose rate', i.e. that low <br/>
'doses' and 'dose rates' protect individuals against 'stochastic effects' and/or <br/>other types of harm (hormesis hypotheses).<br/>" (en)
Types (1)
Usage (6)