Effect of ionizing radiationAny radiation which directly or indirectly ionizes, e.g. alp... leading to a functional loss of the irradiated organ or tissue, if sufficient cells are killed or prevented from reproducing or functioning due to radiationEnergy dispersion through matter or space. In atomic physics.... The seriousness of this loss of organ function is directly proportional to the number of cells affected. Since the function of many organs and tissue is not impaired by a limited reduction in the number of functional cells, a threshold doseSmallest energy or body dose causing a certain effect. for deterministic radiationEnergy dispersion through matter or space. In atomic physics... effects exists, which must be exceeded for an effect to occur. In the case of radiationEnergy dispersion through matter or space. In atomic physics... doses above this threshold the degree of pathological severity increases rapidly. The deterministic effects of ionizing radiationAny radiation which directly or indirectly ionizes, e.g. alp... include skin reddening (doseMeasure of a radiation effect to be indicated more precisely... threshold 3 to 5 grayName for the unit of absobed dose, symbol: Gy. 1 Gray = 1 jo...), opacity of the eye lens (doseMeasure of a radiation effect to be indicated more precisely... threshold 2 to 10 grayName for the unit of absobed dose, symbol: Gy. 1 Gray = 1 jo...) and permanent sterility (doseMeasure of a radiation effect to be indicated more precisely... threshold 2.5 to 6 grayName for the unit of absobed dose, symbol: Gy. 1 Gray = 1 jo...).