THE PROBLEMS OF USING EXEMPTION ACTIVITY VALUES FOR REGULATING THE MANAGEMENT OF SEALED RADIONUCLIDE SOURCES OF GAMMA-RADIATION
https://doi.org/10.21514/1998-426X-2017-10-4-67-72
Abstract
The article focuses on the procedure for exemption of the sealed and unsealed radionuclide sources of gamma radiation from regulatory control. The contradictory nature of the existing set of exemption criteria has been noted, leading, in some cases, to paradoxical situations. It is shown that the exempt activity values determined in NRB-99/2009 and in the international basic safety standards of the IAEA are significantly overestimated (in comparison with the activity values of a point source creating the ambient dose equivalent rate of 1 μSv / h at a distance of 0.1 m) for a number of the most widely used gamma-emitting radionuclides, including 22Na, 54Mn, 75Se, 152Eu and 154Eu. It is proposed to revise the current values of exempt activity, bringing them in line with the dose rate criterion for the exempt of sealed radionuclide sources of gamma radiation, and to present them with one significant digit. The corrected values of exempt activity for seven selected radionuclides are proposed for further use in the process of revision of the national radiation safety standards.
About the Authors
A. N. Barkovsky
Saint-Petersburg Research Institute of Radiation Hygiene after Professor P.V. Ramzaev, Federal Service for Surveillance on Consumer Rights Protection and Human Well-Being
Russian Federation
Russian Federation
Anatoly N. Barkovsky – Head of Federal Radiological Centre.
Mira str., 8, Saint-Petersburg, 197101V. P. Ramzaev
Saint-Petersburg Research Institute of Radiation Hygiene after Professor P.V. Ramzaev, Federal Service for Surveillance on Consumer Rights Protection and Human Well-Being
Russian Federation
Russian Federation
Valery P. Ramzaev – Candidate of Medical Sciences, leading researcher.
Mira str., 8, Saint-Petersburg, 197101
I. K. Romanovich
Saint-Petersburg Research Institute of Radiation Hygiene after Professor P.V. Ramzaev, Federal Service for Surveillance on Consumer Rights Protection and Human Well-Being
Russian Federation
Russian Federation
Ivan K. Romanovich – Doctor of Medical Sciences, Professor, Сorresponding member of the Russian Academy of Sciences, Director.
Mira str., 8, Saint-Petersburg, 197101References
1. IAEA – International Atomic Energy Agency. Categorization of Radioactive Sources. Safety Guide. No. RS-G-1.9. IAEA, Vienna, 2005.
2. Ilyin L.A., Kirillov V.F., Korenkov I.P. Radiation hygiene: a textbook for universities. Moscow, GEOTAR-Media, 2010, 384 p. (in Russian).
3. Barkovsky A.N., Titov N.V., Zeldin A.L. Exception of the management of artificial ionizing irradiation sources from the special regulation. Radiatsionnaya Gygiena = Radiation Hygiene, 2012, Vol. 5, No. 4, pp. 40–44. (in Russian).
4. IAEA – International Atomic Energy Agency. Radiation Protection and Safety of Radiation Sources: International Basic Safety Standards. General Safety Requirements. Part 3. No. GSR Part 3. IAEA, Vienna, 2014. (in Russian).
5. Brodeur D.L. et al. (Ed.). Guidelines for Radiation Protection for Engineers. Vol. 2, Moscow, Atomizdat, 1973, 288 p. (in Russian).
6. ICRP – International Commission on Radiological Protection. Nuclear Decay Data for Dosimetric Calculations (CD data base), ICRP Publication 107. Ann ICRP, 2008, Vol. 38, No. 3.
7. Ramzaev V., Barkovsky A. On the relationship between ambient dose equivalent and absorbed dose in air in the case of large-scale contamination of the environment by radioactive cesium. Radiatsionnaya Gygiena = Radiation Hygiene, 2015, Vol. 8, No. 3, pp. 21–32.
8. ICRP – International Commission on Radiological Protection. Conversion Coefficients for use in Radiological Protection against External Radiation. ICRP Publication 74. Ann. ICRP, 1996, Vol. 26, No. 3/4.
9. Mashkovich V.P., Kudryavtseva A.V. Protection from ionizing radiation: Directory. 4th ed., revised and additional. Moscow, Energoatomizdat, 1995, 496 p. (in Russian).
Review
For citations:
Barkovsky A.N., Ramzaev V.P., Romanovich I.K. THE PROBLEMS OF USING EXEMPTION ACTIVITY VALUES FOR REGULATING THE MANAGEMENT OF SEALED RADIONUCLIDE SOURCES OF GAMMA-RADIATION. Radiatsionnaya Gygiena = Radiation Hygiene. 2017;10(4):67-72. (In Russ.) https://doi.org/10.21514/1998-426X-2017-10-4-67-72
Views:
1135
Email this article 