Lethal dose

Ionizing radiationAny radiation which directly or indirectly ionizes, e.g. alp... doseMeasure of a radiation effect to be indicated more precisely... leading to the death of the irradiated individual due to acute radiationEnergy dispersion through matter or space. In atomic physics... injuries. The average lethal doseMeasure of a radiation effect to be indicated more precisely... (LD50See 'lethal dose'.) is the doseMeasure of a radiation effect to be indicated more precisely... where half of the individuals with similar irradiation quantities die. LD1 is the doseMeasure of a radiation effect to be indicated more precisely... leading to a mortality of 1% of the irradiated persons; consequently, LD99 is lethal for all (99%) persons irradiated. Taking account of an increased radiationEnergy dispersion through matter or space. In atomic physics... sensitivity of certain population groups on the one hand and the progress of medical care on the other hand, mainly homogeneous irradiation of the whole human body – the bone marrow doseMeasure of a radiation effect to be indicated more precisely... is particularly important in this case – an LD1 of 2.5 GySymbol for the absobed dose unit gray., LD50See 'lethal dose'. of 5 GySymbol for the absobed dose unit gray. and LD99 of 8 GySymbol for the absobed dose unit gray. results.