Radon-daughter ions and their relation to some electrical properties of the atmosphere

Article English OPEN
Wilkening, M. H. ; Kawano, M. ; Lane, Carlton (2011)

The mobilities and concentrations of the short-lived decay products of radon existing as positive small ions in the lower atmosphere are measured and compared with corresponding values for ordinary small ions in the atmosphere. Seventyfive per cent of the radon-daughter ions with mobilities greater than 0.06 cm2 sec−1 volt−1 are found in the range of 0.25 to 1.50 cm2 sec−1 volt−1. Ion characteristic curves give no evidence for distinct mobility groups within the resolution available. Radon-daughter ions on the average are present in the ratio of 3 parts per 100,000 of ordinary small ions in the atmosphere. A good correlation between radon-daughter ion concentration and total small-ion content is found over a range of 100 to 1200 small ions cm−3. Radon-daughter ions are found to disappear almost completely at ground level under an active thunderstorm due to upward migration of the ions under the influence of strong electric fields. The importance of radon-daughter ions in the study of the electric environment of thunderstorms is indicated.DOI: 10.1111/j.2153-3490.1966.tb00285.x
  • References (8)

    CHALMERSJ, . A., 1957, Atmospheric Electricity, London, Paris, New York, Pergamon,pp. 211-234.

    FONTANJA,CQUES,1964, Le dosage des radioelements gazeux donnant des produits radioactifs de filiation son application a la mesure de la radioactivite naturelle de l'atmosphere. Thesis, University of Toulouse, France.

    JONASSENN., and WILKENINQM, . H., 1965, Conductivity and concentration of small ions in the lower atmosphere. J. Qeophys. Res., 70, pp. 779- 784.

    KNIPP,J. and TELLERE,. 1941, On the energy loss of heavy ions. Phye. Rev., 69, pp. 659-669.

    STANLEY,R. D., 1964, Mobility distribution of radon-daughter ions. Thesis, New Mexico Institute of Mining and Technology, Socorro, N. M.

    VOHRAK,. G., 1964, A new method for the estimation of radon and thoron contamination in air and its applications. Prog. in Nuclear Energy, Series XII, V . l - Health Physica, pp. 228-238.

    WILKENINOM.. H., 1964, The Natural Radiation Environment. Chicago, Univ. of Chicago Press, pp. 359-368.

    WILKENINOM,. H., and KAWANOM.. 1961, The effects of thunderstorms on the radon-daughter ion content of the atmosphere. J. Qeophys. Res., 66, p. 2570 (a).

  • Metrics
    No metrics available
Share - Bookmark