[Effective and exposure doses in persons occupationally exposed to x-ray radiation].

Individual dosimetry of doses received by persons working with radiation is made by film badges which are worn by workers at the chest. These dosimeters measured the exposure at the body surface, but it is well known that the real risk of ionizing radiation is due to the doses absorbed by radiosensitive organs and so called "effective dose equivalent". In the paper the results showing the relationship between the exposure and effective dose equivalent are presented vs x-radiation energy. In the case when the phantom was irradiated from the front the effective dose equivalent was only 40% of exposure. When the phantom was irradiated from the back the effective dose equivalent was 70% higher than the exposure from the film badge.