Method of monitoring of undisturbed radon flux density from the soil surface

V. S. Yakovleva   ; P. M. Nagorskiy   ; G. A. Yakovlev

Vestnik KRAUNC. Fiziko-matematičeskie nauki, no. 1 (2016), pp. 85-93

Résumé

The results of analysis of existing measurement methods of radon flux density from the soil surface were presented in this work, and the revealed disadvantages of the methods were indicated. A new method of monitoring of undisturbed radon flux density from the soil surface, which is applied for its using in the large range of meteorological conditions, was developed. Outline of the method was given. The method is based on registration of $\alpha$-radiation of radon decay products collected inside the accumulative chamber, which is installed on the soil surface. The accumulative chamber has some small vent holes for partial soil gas emission. The calibration procedure for determination of correction coefficient is described. The results of the method approbation and monitoring data, which was obtained by different methods, are discussed. The new method differs from its analogues in that it allows investigating daily variations of radon flux density.

Détail

Mots-clés : radon
Keywords: flux density, undisturbed flux.

Bibliographie

[1] Yakovleva V. S., Nagorskii P. M., Cherepnev M. S., “Formirovanie $ \alpha $-, $ \beta $- i $\gamma$-polei prizemnoi atmosfery prirodnymi atmosfernymi radionuklidami”, Vestnik KRAUNTs. Fiziko-matematicheskie nauki, 2014, no. 1(8), 86–96 | MR

[2] Yakovleva V. S., Karataev V. D., Vukolov A. V., Ippolitov I.I., Kabanov M. V., Nagorskii P. M., “Razvitie tekhnologii radiatsionnogo monitoringa v gorodskoi srede”, Vestnik KRAUNTs. Fiziko-matematicheskie nauki, 2015, no. 1(10), 65–71

[3] Yakovleva V. S., Metody izmereniya plotnosti potoka radona i torona s poverkhnosti poristykh materialov, Izd-vo Tomskogo politekhnicheskogo universiteta, Tomsk, 2011, 174 pp.

[4] Firstov P. P., Yakovleva V. S., Shirokov V. A., Rulenko O. P., Filippov Yu. A., Malysheva O. P., “The nexus of soil radon and hydrogen dynamics and seismicity of the northern flank of the Kuril-Kamchatka subduction zone”, Annals of Geophysics, 50:4 (2007), 547–556

[5] Yakovleva V. S., “The radon flux density from the Earth's surface as an indicator of a seismic activity”, 7th International Conference on gas geochemistry (ICGG7) (Freiberg, Germany, 2003), ICGG7, Freiberg, 2003, 28–30

[6] Parovik R. I., Firstov P. P., “Aprobatsiya novoi metodiki rascheta plotnosti potoka radona s poverkhnosti (na primere Petropavlovsk-Kamchatskogo geodinamicheskogo poligona)”, ANRI, 2009, no. 3, 52–57

[7] Firstov P. P., Parovik R. I., Yakovleva V. S., Malysheva O. P., “Svyaz skorosti advektsii i plotnosti potoka radona s silnymi zemletryaseniyami yuzhnoi Kamchatki v 2000-2008 gg.”, Solnechno-zemnye svyazi i fizika predvestnikov zemletryasenii, V mezhdunarodnaya konferentsiya (Kamchatskii krai, Petropavlovsk-Kamchatskii, 2010), IKIR DVO RAN, Petropavlovsk-Kamchatskii, 2010, 50–51

[8] Chalmers Dzh. A., Atmosfernoe elektrichestvo, L., Gidrometeoizdat, 1974, 420 pp.

[9] Parovik R. I., Ilin I. A., Firstov P. P., “Obobschennaya odnomernaya model massoperenosa radona i ego ekskhalyatsiya v prizemnyi sloi atmosfery”, Matematicheskoe modelirovanie, 19:11 (2007), 43–50 | Zbl

[10] Kotrappa P., Dempsey J. C., Hickey J. R., Stieff L. R., “An electret passive environmental Rn-222 monitor based on ionization measurement”, Health Phys., 1988, no. 54, 47–56 | DOI

[11] Kotrappa P. et al., “A Practical E-PEPM System for Indoor ${}^{222}\mathrm{Rn}$ Measurement”, Health Physics, 81:58 (1990), 461–467 | DOI

[12] Hartman B., “How to collect reliable soil-gas data for upward risk assessments”, Surface flux-chamber method, Bulletin 44, v. 2, LUSTLine, 2003, 14–34

[13] Yakovleva V. S. i dr., “Metodologiya mnogofaktornogo eksperimenta po protsessam perenosa radona v sisteme «litosfera–atmosfera»”, ANRI, 2009, no. 4, 55–60

[14] Yakovleva V. S., “Modelirovanie vliyaniya sostoyaniya atmosfery ilitosfery na dinamiku plotnosti potoka radona i torona s poverkhnosti zemli”, Izvestiya TPU, 317:2 (2010), 162–166

[15] Yakovleva V. S., Vukolov A. V., «Sposob izmereniya plotnosti potoka radona i torona s poverkhnosti grunta po $\alpha $-izlucheniyu», Patent RF na izobretenie #2419817 ot 03.03.10.

[16] Rogalis V. S., Kuzmich S. G., Polskii O. G., “Issledovaniya vliyaniya vremennykh i pogodnykh uslovii na potoki radona na stroitelnykh ploschadkakh g. Moskvy”, ANRI, 2001, no. 4, 57–61

[17] Reiter E. R., Atmospheric Transport Processes - Part 4: Radiactive Tracers, Technical Information Center, US Department of Energy, 1978

[18] Sisigina T. I., “Kolebaniya ekskhalyatsii radona iz pochvy v atmosferu v svyazi s izmeneniem meteorologicheskikh uslovii”, Trudy instituta eksperimentalnoi meteorologii, Radioaktivnost atmosfery, pochvy i presnykh vod, 5, M., Moskovskoe otdelenie gidrometeoizdata, 1970, 3–15