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Effects of radiation; Effets des radiations

Abstract

The medical consequences of a whole-body irradiation come from the destruction of cells and inflammatory reactions it provokes. The most sensitive organs are the tissues that actively split. The embryo is particularly sensitive, from 200 mSv for the effects on the brain development. The reproduction functions are reached for man from 2000 mSv, the ovary sensitivity is less, the oocytes do not split after the fetus life. For adult the bone marrow outrage leads to the disappearing of blood cells (4000 mSv). The doses from 6000 to 10000 mSv lead the failure of the digestive system and lung. for the upper doses every tissue is reached, particularly by the effects on cells of blood vessels. Important brain dysfunctions appear beyond 10000 mSv. As regards the delayed effects of overexposures the epidemiology brings to light sanitary consequences of the exposure of the population to the ionizing radiations and requires that all the possible factors associated for that purpose are considered. About hereditary effects, it appears that moderate acute radiation exposures of even a relatively large human population must have little impact, in spite of the rate of spontaneous congenital deformations is of the order of 6 %. For the induction of  More>>
Authors:
Masse, R [1] 
  1. Office de Protection contre les Rayonnements Ionisants, 78 - le Vesinet (France)
Publication Date:
Jul 01, 2006
Product Type:
Miscellaneous
Report Number:
INIS-FR-08-0785
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS; ACCIDENTS; BIOLOGICAL RADIATION EFFECTS; FUEL CYCLE; LOW DOSE IRRADIATION; NUCLEAR POWER; POWER GENERATION; REACTORS; RISK ASSESSMENT; UNDERGROUND STORAGE
OSTI ID:
21083738
Research Organizations:
Societe Francaise de Physique, 75 - Paris (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR0604323095636
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
28 pages
Announcement Date:
Nov 06, 2008

Citation Formats

Masse, R. Effects of radiation; Effets des radiations. France: N. p., 2006. Web.
Masse, R. Effects of radiation; Effets des radiations. France.
Masse, R. 2006. "Effects of radiation; Effets des radiations." France.
@misc{etde_21083738,
title = {Effects of radiation; Effets des radiations}
author = {Masse, R}
abstractNote = {The medical consequences of a whole-body irradiation come from the destruction of cells and inflammatory reactions it provokes. The most sensitive organs are the tissues that actively split. The embryo is particularly sensitive, from 200 mSv for the effects on the brain development. The reproduction functions are reached for man from 2000 mSv, the ovary sensitivity is less, the oocytes do not split after the fetus life. For adult the bone marrow outrage leads to the disappearing of blood cells (4000 mSv). The doses from 6000 to 10000 mSv lead the failure of the digestive system and lung. for the upper doses every tissue is reached, particularly by the effects on cells of blood vessels. Important brain dysfunctions appear beyond 10000 mSv. As regards the delayed effects of overexposures the epidemiology brings to light sanitary consequences of the exposure of the population to the ionizing radiations and requires that all the possible factors associated for that purpose are considered. About hereditary effects, it appears that moderate acute radiation exposures of even a relatively large human population must have little impact, in spite of the rate of spontaneous congenital deformations is of the order of 6 %. For the induction of cancers, it is not observed excess for doses lower than 200 mSv for adults and 100 mSv for children (the populations studied are survival people of hiroshima and Nagasaki, patients treated by irradiation, uranium miners, children exposed to radioactive iodine after Chernobylsk accident). To simplify an expression of the risk has been fixed to 5% of induced cancer by Sv for population and 4% by Sv for workers, the different being explained by the demography and the sensitivity of the youngest age groups. As regards the low doses of radiations, a bundle of convergent epidemiological observations notices the absence of effects of the low doses rates. Biological mechanisms, notably of repair are approached, then certain accidents (Goiania, Windscale, Three Mile Island 'T.M.I.') with the particular situation of the Chernobylsk accident with its sanitary consequences are evoked. (N.C.)}
place = {France}
year = {2006}
month = {Jul}
}