DoseMeasure of a radiation effect to be indicated more precisely... value of an ionizing radiationAny radiation which directly or indirectly ionizes, e.g. alp... fixed by the legislator as a maximum to which a person may be exposed based on recommendations from scientific committees. Different doseMeasure of a radiation effect to be indicated more precisely... limit values are fixed for different groups of persons. When handling radioactive substancesRadioactive substances within the meaning of the Atomic Ener... and ionizing radiationAny radiation which directly or indirectly ionizes, e.g. alp... the principle that any unnecessary radiationEnergy dispersion through matter or space. In atomic physics... exposure is to be avoided must be observed and if unavoidable it is to be kept as low as possible, even when within the legal limit values. The German Radiation ProtectionRadiation protection deals with the protection of individual... Ordinance and the X-Ray Ordinance fixes the limit values for occupationally exposed persons as listed in the table. Lower values apply for occupationally exposed pregnant women and apprentices.
Tissue or organ |
Limit |
| Effektive doseMeasure of a radiation effect to be indicated more precisely... |
20 mSv/year |
| Organ doseThe organ dose HT,R is the product of the organ absorbed dos...: |
|
| Bone marrow (red), gonads, uterus |
50 mSv/year |
| Adrenals, bladder, brain, breast, lens of the eye, small intestine, upper large intestine, kidney, liver, lung, muscle, oesophagus, pancreas, spleen, stomach, thymus |
150 mSv/year |
| Bone surface, thyroid |
300 mSv/year |
| Ankles, feet, forearms, hands, skin |
500 mSv/year |
DoseMeasure of a radiation effect to be indicated more precisely... limits in Germany for occupationally exposed persons
The effective doseMeasure of a radiation effect to be indicated more precisely... for members of the public must not exceed 1 mSv/year. The limit for the lens of the eye is 15 mSv/year and for the skin 50 mSv/year.
Nuclear power plants must not exceed radioactive emissions from exhaust air or waste water which result in:
| Effective doseMeasure of a radiation effect to be indicated more precisely... and doseMeasure of a radiation effect to be indicated more precisely... for gonads, uterus, bone marrow (red) | 0.3 mSv/year |
| DoseMeasure of a radiation effect to be indicated more precisely... for adrenals, bladder, brain, breast, small intestine, upper large intestine, kidney, liver, lung, muscle, oesophagus, pancreas, spleen, stomach, thyroid, thymus | 0.9 mSv/year |
| DoseMeasure of a radiation effect to be indicated more precisely... for bone surface, skin | 1.8 mSv/yea |
These doseMeasure of a radiation effect to be indicated more precisely... limits shall be observed at the most unfavourable point of effect, taking account of all relevant load paths, the dietary and lifestyle habits of the reference person in addition to any possible prior contaminationUnwanted pollution of working surfaces, devices, rooms, wate... by other plants and facilities.