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Dynamics of radon and its decay products inside an accumulative chamber

Autorzy
Treść / Zawartość
Identyfikatory
Warianty tytułu
Konferencja
Proceedings of the International Conference "Radon in Environment" 10-14 May 2009, Zakopane Poland
Języki publikacji
EN
Abstrakty
EN
The calculations of radon and its decay products accumulation dynamics inside a chamber designed for measurements of radon flux density from the soil surface were carried out in the present work. Dynamics of alpha-,beta-particles and gamma-ray yields under decay of accumulated radionuclide nuclei was calculated based on the accumulated activity. Ion production rate inside the accumulative chamber due to ionizing radiation of different types was estimated. Thoron and its decay products accumulation regularities inside the accumulative chamber were also estimated and potential effect of thoron on measurement results (if counting regime is used) was analyzed in detail. Dynamic equations of the studied radiation characteristics, their solutions and obtained results analysis are presented.
Czasopismo
Rocznik
Strony
595--600
Opis fizyczny
Bibliogr. 25 poz., rys.
Twórcy
  • Applied Physics Department, Tomsk Polytechnic University, 30 Lenin Pr., Tomsk, 634050, Russian Federation, Tel.: +7 3822 418906, Fax: +7 3822 418901, jak@interact.phtd.tpu.ru
Bibliografia
  • 1. Aldenkamp FJ, Put LW, de Meijer RJ (1988) Aspects of an instrument for in situ measurements of radon exhalation rates. Environ Int 14;4:341–344
  • 2. Amin RM, Mansy M, Eissa MF, Eissa HM, Shahin FM (2008) Assessment of natural radioactivity and radon exhalation rate in Sannur cave, eastern desert of Egypt. J Radiol Prot 28:213–222
  • 3. Bespalov VI (2008) Interaction of ionizing radiation with matter, 4th ed. TPU Press, Tomsk (in Russian)
  • 4. Chau ND, Chruściel E (2003) Determination of exhalation rates through measurements of alpha and beta radiation with the aid of liquid scintillation counter. Nukleonika 48;3:133–136
  • 5. Chau ND, Chrusciel E, Prokolski L (2005) Factors controlling measurements of radon mass exhalation rate. J Environ Radioactiv 82:363–369
  • 6. Csige I, Hakl J, Várhegyi A (1999) 222Rn flux density measurements on soil surfaces. In: Proc on IRPA Regional Congress on Radiation Protection in Central Europe, Budapest, Hungary, pp 623–627
  • 7. De Martino S, Sabbarese C, Monetti G (1998) Radonemanation and exhalation rates form soils measured with an electrostatic collector. Appl Radiat Isot 49:407–413
  • 8. Duenas C, Fernandez MC, Carretero J, Liger E, Perez M (1997) Release of 222Rn from some soils. Ann Geophysicae 15:124–133
  • 9. Ferry C, Beneito A, Richon P, Robe M-C (2001) An automatic device for measuring the effect on meteorological factors on radon-222 flux from soils in the long term. Radiat Prot Dosim 93;3:271–274
  • 10. Horvath H (2000) Aerosols – an introduction. J Environ Radioactiv 51:5–25
  • 11. Hosoda M, Shimo M, Sugino M, Furukawa M, Fukushi M (2007) Effect of soil moisture content on radon and thoron exhalation. J Nucl Sci Technol 44;4:664–672
  • 12. ICRP (1983) Radionuclide transformations: energy and intensity of emissions. ICRP Publication no. 38. Elsevier
  • 13. Koarashi J, Amano H, Andoh M, Iida T (2000) Estimation of 222Rn flux from ground surface based on the variation analysis of 222Rn concentration in a closed chamber. Radiat Prot Dosim 87;2:121–131
  • 14. Kotrappa P, Stieff LR, Bigu J (1996) Passive Rad Elec Inc., E-PERM® Radon flux monitors for measuring undisturbed radon flux from the ground. In: Proc on Int Radon Symp, Haines City, II-1.6, http://www.aarst.org/radon_research_papers.html
  • 15. Kumar R, Sengupta D, Prasad R (2003) Natural radioactivity and radon exhalation studies of rock samples from Surda Copper deposits in Singhbhum shear zone. Radiat Meas 36:551–553
  • 16. Lawrence CE, Akber RA, Bollhofer A, Martin P (2009) Radon-222 exhalation from open ground on and around a uranium mine in the wet-dry tropic. J Environ Radioactiv 100:1–8
  • 17. Lehmann BE, Ihly B, Salzmann S, Conen F, Simon E (2004) An automatic static chamber for continuous 220Rn and 222Rn flux measurements from soil. Radiat Meas 38:43–50
  • 18. Mashkovich VP, Kudrjavtseva AV (1995) Ionizing radiation protection. Energoatomizdat, Moscow (in Russian)
  • 19. Megumi K, Mamuro T (1972) A method for measuring radon and thoron exhalation from the ground. J Geophys Res 77:3052–3056
  • 20. Mysłek-Laurikainen B, Matul M, Mikolajewski S, Trzaskowska H, Kubicki M (2001) The airborne radioactivity and electrical properties of ground level air.Nukleonika 46;4:195–197
  • 21. Saegusa J, Yamasaki K, Tsujimoto T, Yamauchi T, Shimo M (1996) Development of an apparatus for measuring ground exhalation rates of 222Rn and 220Rn. Environ Int 22;S1:S483–S490
  • 22. Schery SD, Whittlestone S, Hart KP, Hill SE (1989) The flux of radon and thoron from Australian soils. J Geophys Res 94;D6:8567–8576
  • 23. Spehr W, Johnston A (1983) The measurement of radon exhalation rates using activated charcoal. Radiat Prot in ustralia 1:113–116
  • 24. Szegvary T, Leuenberger MC, Conen F (2007) Predicting terrestrial 222Rn flux using gamma dose rate as a proxy Atmos Chem Phys 7:2789–2795
  • 25. Tuccimei P, Moroni M, Norcia D (2006) Simultaneous determination of 222Rn and 220Rn exhalation rates from building materials used in Central Italy with accumulation chambers and a continuous solid state alpha detector: influence of particle size, humidity and precursors concentration. Appl Radiat Isot 64:254–263
  • 26. Yakovleva VS, Karataev VD (2007) Radon flux density at the earth’s surface as a possible indicator of the stress and strain state of the geological environment. J Volcanol Seismol 1;1:67–70
  • 27. Yakovleva VS, Schmidt V, Hamel P, Buchröder H, Gyngazova MA (2005) Deposition of short-lived Rn-222 decay products on solid surfaces. Optics Atm Ocean 18(05–06):520–524 (in Russian)
  • 28. Yakovleva VS, Vukolov AV, Karataev VD (2009) Automatic device for continuous measurements of radon flux density. In: Abstracts book of the Int Conf Radon in Environment, 10–14 May, Zakopane, Poland, p 73
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ7-0014-0096
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