A Theoretical Treatment of adsorption of Radon Gas on Charcoal

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概要

• 論文の詳細を見る

• <BR>The use of an activated charcoal sampler for radon monitoring has become popular in recent years because of its passiveness and low price. Dynamics of adsorption on a passive sampler have been described with theoretical models. However, extrapolation of the measured results of radon on charcoal to the diurnal fluctuations of the ambient radon concentration is often difficult and even misleading because of the oversimplification of these models. A more generalized approach is undertaken by treating the diurnal variations in radon concentrations as poly-exponential functions and by solving for explicit particular solutions of Ficks equation. The application of these solutions to various practical situations is explored. This includes their use for charcoal sampler calibration. Estimated values of the adsorption coefficients, k, and diffusion constant, D, appear to be agreeable with corresponding reported values. A triple-sampler protocol is also proposed for radon survey in areas of high diurnal fluctuations.

• 社団法人 日本原子力学会の論文
• 1997-09-25

著者

• Wang Ding

  Institute Of Hydrobiology Chinese Academy Of Sciences

• Wang D

  Tsinghua Univ.

• Chiang Hai-pang

  Institute Of Physics Academia Sinica

• Shiau Yuo-hsien

  Institute Of Physics Academia Sinica

• Wang Dazhong

  Institute Of Nuclear Energy Technology Tsinghua University

• TSE Wan-Sun

  Institute of Physics, Academia Sinica

• SKRABLE Kenneth

  Radiological Health Physics Department, University of Massachusetts at Lowell

• LI Kuang-Pang

  Department of Chemistry, University of Massachusetts at Lowell

• Tse Wan-sun

  Institute Of Physics Academia Sinica

• Li Kuang-pang

  Department Of Chemistry University Of Massachusetts At Lowell

• Skrable Kenneth

  Radiological Health Physics Department University Of Massachusetts At Lowell

• Chiang Hai-Pang

  Institute of Optoelectronic Sciences, National Taiwan Ocean University, Keelung 202, Taiwan, R.O.C.

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