Measurement of exhalation and diffusion parameters of radon in solids by plastic track detectors

  • Somogyi G
  • Hafez A
  • Hunyadi I
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There are large discrepancies in data available in the literature for the exhalation and diffusion behaviour of radon in various materials. Therefore there is a need for more studies in this field. For this purpose we have developed and used track methods to measure mass and areal exhalation rates of radon from different fly ashes and sand. In addition, methods were also developed to determine the diffusion length of radon and the porosity of materials. For getting the radon emanation coefficient we have applied the autoradiographic method and the "can-technique" for determining the real and effective radium contents. The disturbing effect expected from the geometry of measuring cans and samples is discussed. Relations are derived for the correction of such effect. © 1986.

Author-supplied keywords

  • Plastic track detectors
  • areal and mass exhalation rate
  • diffusion length
  • effect of measuring geometry
  • fly ash
  • radon
  • α-activity measurement

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  • G. Somogyi

  • Abdel Fattah Hafez

  • I. Hunyadi

  • M. Tóth-Szilágyi

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