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Fast measurement of radon concentration in water with Lucas cell

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Języki publikacji
EN
Abstrakty
EN
Abstract Fast method of measurement of radon concentration in water based on flushing (bubbling) water sample with air in closed loop with Lucas cell is presented. The main feature of the method is washing radon from large sample of water to small volume of air including the volume of Lucas cell, thanks to which high radon concentration in the air and considerable sensitivity of measurement is achieved. Estimated measuring sensitivity is S = 8.5 cpm/(Bq/dm3). Random error due to statistical fluctuations of count rate at radon concentration 1, 100, 10 000 Bq/dm3 is: 11, 1.1, 0.1% correspondingly at counting (measuring) time 10 min. Minimum detectable radon concentration in water for such counting time is 0.11 Bq/dm3.
Słowa kluczowe
Czasopismo
Rocznik
Strony
29--31
Opis fizyczny
Bibliogr. 12 poz., rys.
Twórcy
autor
  • Department of Radioisotope Instruments and Methods, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: +48 22/ 811 06 55, Fax: +48 22/ 811 19 17
autor
  • Department of Radioisotope Instruments and Methods, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: +48 22/ 811 06 55, Fax: +48 22/ 811 19 17
Bibliografia
  • 1. Boyle RW (1911) The solubility of radon emanation. Application of Henry’s law at low partial pressures. Philos Mag 22:840
  • 2. Burnett B, Taylor N, Corbett R et al. (1998) Improvements in measurement of Rn-222 in natural waters. In: 44th Annual Conf on Bioassay, Analytical and Environmental Radiochemistry, November 15−29, 1998, Alburquerque. www.nucfilm.com/burnett_98.pdf
  • 3. Clever HL, Battino R (eds) (1979) Krypton, xenon, and radon: gas solubilities. Solubility Data Series, vol. 2. Pergamon Press, Oxford
  • 4. Karangelos DJ, Petropoulus NP, Hinis EP, Simopoulus SE (2002) Radon-in-water secondary standard preparation. NTUA, Greece. http://nuclear.ntua.gr/public/rp_files/erricca_water.pdf
  • 5. Lucas HF (1957) Improved low level alpha scintillation counter for radon. The Review of Scientific Instruments 28:680−683
  • 6. Machaj B, Urbański P (1999) Continuous measurement of radon concentration in the air with Lucas cell by periodic sampling. Nukleonika 44;4:579−594
  • 7. Machaj B, Urbanski P (2002) Principal component data processing in radon metrology. Nukleonika 47;1:39−42
  • 8. Radon and its decay products in indoor air (1988) In: Nazaroff WW, Nero AV (eds) Radon entry via potable water. J. Wiley and Sons, New York, pp 131−157
  • 9. Radon property and solubility. www.ed.gifu-u.ac.jp/~tasaka/html/property.html (in Japanese)
  • 10. Surbeck H (1996) A radon in water monitor based on fast gas transfer membranes. In: Proc of the Int Conf on Technologically Enhanced Natural Radioactivity by Nonuranium Mining, October 16−19, 1996, Szczyrk, Poland.www.nucfilm.com/ustron.pdf
  • 11. Wardaszko T, Grzybowska D (1993) Ra-226 and Rn-222 in fresh waters in Poland. Nukleonika 38;4:103−108
  • 12. Weigel F (1978) Radon. Chemiker Zeitung 102:287
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ6-0005-0044
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