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- Linear_no-threshold_model abstract "The linear no-threshold model (LNT) is a model used in radiation protection to quantify radiation exposition and set regulatory limits. It assumes that the long term, biological damage caused by ionizing radiation (essentially the cancer risk) is directly proportional to the dose. This allows the summation by dosimeters of all radiation exposure, without taking into consideration dose levels or dose rates. In other words, radiation is always considered harmful with no safety threshold, and the sum of several very small exposures are considered to have the same effect as one larger exposure (response linearity).One of the organizations for establishing recommendations on radiation protection guidelines internationally, the UNSCEAR, has recently recommended policies that do not agree with the Linear No-Threshold model at exposure levels below background levels of radiation to the UN General Assembly from the Fifty-Ninth Session of the Committee. Its recommendation states that "the Scientific Committee does not recommend multiplying very low doses by large numbers of individuals to estimate numbers of radiation-induced health effects within a population exposed to incremental doses at levels equivalent to or lower than natural background levels." This is a reversal from previous recommendations by the same organization.Whether the model describes the reality for small-dose exposures is disputed. It opposes two competing schools of thought: the threshold model, which assumes that very small exposures are harmless, and the radiation hormesis model, which claims that radiation at very small doses can be beneficial. Because the current data are inconclusive, scientists disagree on which model should be used. Pending any definitive answer to these questions and the precautionary principle, the model is sometimes used to quantify the cancerous effect of collective doses of low-level radioactive contaminations, even though such practice has been condemned by the International Commission on Radiological Protection.The LNT model is sometimes applied to other cancer hazards such as polychlorinated biphenyls in drinking water.".
- Linear_no-threshold_model thumbnail Radiations_at_low_doses.gif?width=300.
- Linear_no-threshold_model wikiPageExternalLink chernobyleflyer.pdf.
- Linear_no-threshold_model wikiPageExternalLink 5173310.stm.
- Linear_no-threshold_model wikiPageExternalLink www.dose-response.org.
- Linear_no-threshold_model wikiPageExternalLink execsumm.htm.
- Linear_no-threshold_model wikiPageExternalLink www.hpa.org.uk.
- Linear_no-threshold_model wikiPageExternalLink www.iaea.org.
- Linear_no-threshold_model wikiPageExternalLink www.iarc.fr.
- Linear_no-threshold_model wikiPageExternalLink www.icrp.org.
- Linear_no-threshold_model wikiPageExternalLink www.icru.org.
- Linear_no-threshold_model wikiPageExternalLink www.irpa.net.
- Linear_no-threshold_model wikiPageExternalLink www.irsn.org.
- Linear_no-threshold_model wikiPageExternalLink www.ncrponline.org.
- Linear_no-threshold_model wikiPageExternalLink colloquium%20website.htm.
- Linear_no-threshold_model wikiPageExternalLink www.unscear.org.
- Linear_no-threshold_model wikiPageID "1106055".
- Linear_no-threshold_model wikiPageRevisionID "603116301".
- Linear_no-threshold_model hasPhotoCollection Linear_no-threshold_model.
- Linear_no-threshold_model subject Category:Nuclear_medicine.
- Linear_no-threshold_model subject Category:Oncology.
- Linear_no-threshold_model subject Category:Radiation_health_effects.
- Linear_no-threshold_model subject Category:Radiobiology.
- Linear_no-threshold_model type Consequence111410625.
- Linear_no-threshold_model type Phenomenon100034213.
- Linear_no-threshold_model type PhysicalEntity100001930.
- Linear_no-threshold_model type Process100029677.
- Linear_no-threshold_model type RadiationHealthEffects.
- Linear_no-threshold_model comment "The linear no-threshold model (LNT) is a model used in radiation protection to quantify radiation exposition and set regulatory limits. It assumes that the long term, biological damage caused by ionizing radiation (essentially the cancer risk) is directly proportional to the dose. This allows the summation by dosimeters of all radiation exposure, without taking into consideration dose levels or dose rates.".
- Linear_no-threshold_model label "Faibles doses d'irradiation".
- Linear_no-threshold_model label "Hipoteza LNT".
- Linear_no-threshold_model label "Linear no-threshold model".
- Linear_no-threshold_model label "Modello Linear no-threshold".
- Linear_no-threshold_model label "Modelo lineal sin umbral".
- Linear_no-threshold_model label "Линейно-квадратическая модель".
- Linear_no-threshold_model label "低線量被曝問題".
- Linear_no-threshold_model sameAs Modelo_lineal_sin_umbral.
- Linear_no-threshold_model sameAs Faibles_doses_d'irradiation.
- Linear_no-threshold_model sameAs Modello_Linear_no-threshold.
- Linear_no-threshold_model sameAs 低線量被曝問題.
- Linear_no-threshold_model sameAs Hipoteza_LNT.
- Linear_no-threshold_model sameAs m.046gwr.
- Linear_no-threshold_model sameAs Q772939.
- Linear_no-threshold_model sameAs Q772939.
- Linear_no-threshold_model sameAs Linear_no-threshold_model.
- Linear_no-threshold_model wasDerivedFrom Linear_no-threshold_model?oldid=603116301.
- Linear_no-threshold_model depiction Radiations_at_low_doses.gif.
- Linear_no-threshold_model isPrimaryTopicOf Linear_no-threshold_model.