Dosimetry data of the Russian National Medical and Dosimetry Registry for liquidators

"Radiation and Risk" 1995. Special Issue 2, pp. 4-44


Pitkevich V.A., Ivanov V.K., Tsyb A.F., Maksyutov M.A., Matyash V.A., Shchukina N.V.
Medical Radiological Research Center RAMS, Obninsk


In the issue for the first time, a detailed description of the dosimetric data recorded in the Russian State Medical Dosimetry Register (RNMDR) is given for participants in the emergency response operation at the Chernobyl NPP. The dosimetric fields of the RNMDR for liquidators are entered with data on absorbed external radiation doses obtained from official documents issued to liquidators by organizations that performed dosimetric control in the work area.

According to the currently available data on radiation doses for the 125771 liquidator (79.1% of the total number of 159027 people), various statistical characteristics were built to assess the reliability of the information received.

The release shows the distribution of absorbed doses depending on the date of commencement of work in the accident recovery zone (from 0 to 250 km from the 4th block of the ChNPP), distance from the settlement of residence or closest to the place of work of the liquidator to the Chernobyl NPP, time spent in the area of ​​the accident recovery.

To analyze the reliability of the dosimetric data, the concept of effective exposure dose rate (EDR) of the radiation field for each liquidator was introduced and the corresponding statistical characteristics of the distribution of the EDR depending on the date of entry into the LPA and the distance from the living or working area to the Chernobyl NPP were introduced.

The analysis of the results for various categories of liquidators. It shows that the dosimetric data of the RNMDR as a statistical aggregate do not contradict, in general, the radiation situation in the areas of accident recovery. The reliability of each individual dose value is currently the subject of the work of the relevant division of the RNMDR, as well as specialists from other institutions and organizations.

Key words
Dosimetric data, Russian National Medical and Dosimetry Register, RNMDR, liquidation participants, Chernobyl NPP accident, distribution of absorbed doses, time spent in the accident zone, effective exposure dose rate, distribution, liquidators.

Introduction pp.4-5 (in Russian)

Distribution of liquidators' absorbed doses pp.6-25 (in Russian)

Analysis of dosimetric data for liquidators using the concept effective dose rate of the radiation field pp.26-37 (in Russian)

Average radiation exposure to liquidators pp.38-43 (in Russian)


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