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Study of atmosphere parameters of the IVV-2M reactor hall

  • M.E. Vasyanovich (Institute of Industrial Ecology UB RAS) ;
  • M.V. Zhukovsky (Institute of Industrial Ecology UB RAS) ;
  • E.I. Nazarov (Institute of Industrial Ecology UB RAS) ;
  • I.M. Russkikh (Research Institute of Nuclear Materials)
  • 투고 : 2022.12.12
  • 심사 : 2023.07.05
  • 발행 : 2023.11.25

초록

The paper presents the results of a study of radioactive noble gases and from decay products in the atmosphere of the reactor hall of the research nuclear reactor IVV-2M. The distribution of short-lived 88Rb and 138Cs activity by sizes of aerosol particles was measured in the range of 0.5-1000 nm. It is shown that radioactive aerosols are characterized by three main modes with AMTD 2-3 nm, 7-15 nm and 400 nm. About 70% of aerosol activity is due to 88Rb. The equilibrium factor between 88Kr and 88Rb is 0.2 ± 0.1. The total concentration of aerosols particles was measured using an aerosol diffusion spectrometer. The value of unattached fraction of radioactive aerosols in the atmosphere of reactor hall IVV2M was f = 0.15-0.25 at the average total aerosol particles concentration from 20,000 cm3 to 53,000 cm3.

키워드

참고문헌

  1. The 2007 recommendations of the international commission on radiological protection. ICRP publication 103, Ann. ICRP 37 (2-4) (2007). ICRP.
  2. M.D. Dorrian, Particle size distributions of radioactive aerosols in workplaces, Radiat. Protect. Dosim. 2 (60) (1995) 119-133. https://doi.org/10.1093/oxfordjournals.rpd.a082709
  3. M.E. Vasyanovich, A.V. Vasilyev, A.A. Ekidin, I.A. Kapustin, A.I. Kryshev, Special monitoring results for determination of radionuclide composition of Russian NPP atmospheric releases, Nucl. Eng. Technol. 51 (2019) 1176-1179. https://doi.org/10.1016/j.net.2019.02.010
  4. ICRP, Occupational Intakes of Radionuclides: Part 3, ICRP vol. 46, ICRP Publication 137, Ann, 2017, 3/4.
  5. J. Porstendorfer, T.T. Mercer, Influence of electric charge and humidity upon the diffusion coefficient of radon decay products, Health Phys. 37 (1979) 191-199. https://doi.org/10.1097/00004032-197908000-00001
  6. J. Porstendorfer, A. Reineking, Κ.H. Becker, Free fractions, attachment rates, and plate-out rates of radon daughters in houses, in: P.K. Hopke (Ed.), Radon and its Decay Products. Occurrence, Properties, and Health Effects, American Chemical Society, 1987, pp. 285-300.
  7. J. Porstendorfer, Properties and behavior of radon and thoron and their decay products in the air, J. Aero. Sci. 25 (1994) 219-263. https://doi.org/10.1016/0021-8502(94)90077-9
  8. I.M. Russkikh, IVV-2M nuclear research reactor, At. Energy 121 (2017) 235-39. https://doi.org/10.1007/s10512-017-0190-7
  9. C. Papastefanou, Radioactive aerosols, radioactivity in the environment, a companion series to the, J. Environ. Radioact. 12 (2008) 1-171. https://doi.org/10.1016/S1569-4860(07)12009-X
  10. M. Zhukovsky, M. Vasyanovich, A. Onishchenko, A. Vasilyev, Anomalously high unattached fraction of 220Rn decay products in the atmosphere of monazite storage facility, Appl. Radiat. Isot. 151 (2019) 1-6. https://doi.org/10.1016/j.apradiso.2019.05.035
  11. M. Zhukovsky, M. Rogozina, A. Suponkina, Size distribution of radon decay products in the range 0.1-10nm, Radiat. Protect. Dosim. 160 (2014) 192-195. https://doi.org/10.1093/rpd/ncu084
  12. M. Rogozina, M. Zhukovsky, A. Ekidin, M. Vasyanovich, Thoron progeny size distribution in monazite storage facility, Radiat. Protect. Dosim. 162 (2014) 10-13. https://doi.org/10.1093/rpd/ncu208
  13. M.A. Rogozina, M.V. Zhukovskii, A.A. Ekidin, Interpretation of data from the screen-type diffusion battery with the sequential arrangement of trapping elements, Instrum. Exp. Tech. 56 (6) (2013) 711-713. https://doi.org/10.1134/S0020441213060109
  14. V.A. Zagaynov, V.V. Maksimenko, A.A. Lushnikov, I.E. Agranovskii, Y.G. Biryukov, M.E. Vasyanovich, Specific features in measuring particle size distributions in highly disperse aerosol systems, Rus. J. of Physic. 92 (6) (2018) 1201-1207. https://doi.org/10.1134/S0036024418060262
  15. M.E. Vasyanovich, A.A. Ekidin, M.V. Zhukovskii, D.V. Markov, I.M. Russkikh, Determination of the size distribution of radioactive aerosols in the IVV-2M reactor room atmosphere, At. Energy 21 (4) (2017) 312-315. https://doi.org/10.1007/s10512-017-0204-5
  16. OIR Data Viewer, Electronic annex accompanying the ICRP occupational intake of radionuclides publication series, Version 5.27.9.21, https://www.icrp.org/docs/ICRP%202022%20OIR%20Electronic%20Annex%20Distribution%20Set.zip, 2021.