Dosimetric control

Dosimetric control - measurement of the value (or power) doses of ionizing radiation with the purpose of establishing the level of doses received by persons in contact with sources of radiation. Is held in the x-ray cabinets, radiological laboratories, enterprises of the nuclear industry, as well as on the areas of radioactive contamination. Dosimetric control is realized with the help of special devices - dosimeters (see ionizing radiation Dosimeters).
Dosimetric monitoring is carried out in two ways. In the first method (group dosimetry) measure the radiation intensity in a particular place, such as in the control room rentgenoterapevticheskie or gamma-ray apparatus. Having this information, and knowing the time of stay of people in the control room, it is easy to calculate the amount of radiation dose. For example, the radiation intensity in this area is 10 mrad/hour, and the time spent in it people - 5 hours. Therefore, the value of doses each equal 10x5=50 mrad.
The second method of measurement (individual dosimetry) each employee receives an individual dosimeter, which is during the whole working day in the breast pocket of special robe. Individual dosimeters are regularly dosimetry laboratory, where are measured received by the employee dose irradiation.
Individual dosimeters require careful treatment. After a strong vibration or shock you need to replace a dosimeter. After work dosimeter cannot be left in rooms where determined by the presence of radiation. Cm. also Doses of ionizing radiation.