Radon film-badges versus existing passive monitors based on track etch detectors

• Autorzy: Tommasino L.
• Konferencja: Proceedings of the International Conference "Radon in Environment" 10-14 May 2009, Zakopane Poland
• Języki publikacji: EN

Abstrakty

EN

New methods and apparatus for the passive sampling of radon are introduced in the present paper. These samplers are based on the sorption of radon by layers of different types of solids. These solid layers result in sources of alpha, beta or gamma radiations, which can be detected by any passive or real-time detector, thus obtaining a variety of new radon monitors. By way of example, by facing one of said layers against a nuclear track detector, it is possible to obtain a compact radon film-badge. This film badge makes it finally possible to solve most of the shortcomings of existing passive monitors, based on track detectors, for the measurements of short- and long-term exposures of radon in air, in water, and in soils. These devices can be easily implemented by any existing radon service just as a back-up technology, with little or no change of the presently-used passive monitors.

Słowa kluczowe

EN

radon; radon monitor; diffusion chamber; film badge; absorption; adsorption

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2010
• Tom: Vol. 55, No. 4
• Strony: 549--553
• Opis fizyczny: Bibliogr. 21 poz., rys.

Twórcy

autor

Tommasino L.

• THL – Tom’s Home Lab, Via Cassia 1727, 00123 Rome, Italy, Tel.: [phone], Fax: [phone],

Bibliografia

• 1. Barrer RM (1951) Diffusion in and through solids. Cambridge University Press, Cambridge
• 2. Clever HL (ed) (1979) Krypton-, xenon-, radon gas solubilities. Vol. 2. Solubility Data Series. Pergamon Press, Oxford, pp 227–237
• 3. Guerin R, Vuillemenot P (1995) Techniques originales de prelevement, de conditionnement et d’analyse de l’helium et du radon (et autres gaz) en milieu saturé: examples d’applications. In: Klein D, Chambaudet A, Rbetez M (eds) Proc of the 3rd Int Conf On Rare Gas Geochemistry, 20–25 September 1995, Besancon, pp 559–578
• 4. McBain JW (1909) Sorption of a penetrant by a solid. Phil Mag 18:916–925
• 5. More H, Hubbard M (1997) Radon absorption in plastic holders for alpha-track detectors. A source of error. Radiat Prot Dosim 74:85–91
• 6. Muller V (1978) Die Diffusions, Loeslichkeits- und Permeabilitaetskoffizienten von Radon-222 in Handelsueblichen Kunststoffen. DSc Thesis, University of Dresden
• 7. Pollock RW, Sabels BE (1988) Radon entry dynamics with alpha track monitors or just how does the radon get in? Radon Symp Research Papers and Presentations from all Previous AARST and EPA Radon Conf, Denver, CO, pp 391–397
• 8. Pressyanov D (2009) Modeling a 222Rn measurement technique based on absorption in polycarbonates and track-etch counting. Health Phys 97;6:604–612
• 9. Pressyanov D, Buysse J, Poffijn A, Meesen G, Van Deynse A (2001) The compact disk as radon detector – a laboratory study of the method. Health Phys 84:642–651
• 10. Prichard HM (1983) A solvent extraction technique for the measurement of 222Rn at ambient air concentrations. Health Phys 45:493–499
• 11. Saito, Okumura H, Okaushi K (2003) An easy radon measurement by absorptive polymer dissolved liquid scintillation counting – absorption factor of APDLS film. Radioisotopes 52:483–489
• 12. Sutej T, Ilic R, Križman M (1993) Response of a new charcoal-etched radon track dosimeter. Nucl Tracks Radiat Meas 21:441–443
• 13. Tanner AB (1991) Error in measuring radon in soil gas by means of passive detectors. Nucl Geophys 5:25–30
• 14. Tommasino L (1998) Passive sampling and monitoring of radon and other gases. Radiat Prot Dosim 78:55–58
• 15. Tommasino L, Cherouati DE, Seidel JL, Monnin M (1986) A plastic bag sampler for passive radon monitoring. Nucl Tracks Meas 12:681–684
• 16. Tommasino L, Tommasino MC (2008a) New methods and apparatus for long-term measurements of large radon concentrations indoors, in soil, in water, and/or aqueous media. Patent application no. RM2008A000430
• 17. Tommasino L, Tommasino MC (2008b) New methods and apparatus for measuring low radon exposures and for protecting of passive radon monitors prior to and after their exposure. Patent application no. RM2008A000429
• 18. Tommasino L, Tommasino MC (2008c) New methods and apparatus for sampling and detecting radon, its decay products, and other airborne radionuclides. Patent application no. RM2008A000679
• 19. Tommasino L, Tommasino MC, Viola P (2009) Radon film-badges by solid radiators vs. existing passive radon monitors. Radiat Meas 14:719–723
• 20. Urban M, Piesch E (1981) Low-level environmental radon dosimetry with a passive track-etch detector device. 1:97–109
• 21.van Deynse A, Cosma C, Poffijn A (1999) A passive radon dosemeter based on the combination of a track-etch detector and activated charcoal. Radiat Meas 31:325–330