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Coagulation and diffusion of enclosed nuclei

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Summary

Decay experiments were carried out with ultra small nuclei, the sedimentation loss of which is negligible. It was found that the coefficient of the linear diffusion term in the decay equation varies as the square root of the diffusion coefficient. An interpretation of this relation, which takes convection into account, is suggested. Previous decay experiments are examined in the light of the new relation.

Zusammenfassung

Es wurden Schwundexperimente mit ultra-kleinen Kernen ausgeführt, bei denen der Verlust durch Sedimentation vernachlässigbar ist. Es wurde gefunden, dass der Koeffizient des linearen Diffusions-Gliedes in der Gleichung für das Verschwinden von Kernen sich wie die Quadratwurzel aus dem Diffusionskoeffizienten ändert. Eine Interpretation dieser Beziehung, welche Konvektion berücksichtigt, wird vorgeschlagen. Frühere Schwundexperimente werden im Lichte dieser neuen Beziehung geprüft.

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References

  1. Kennedy H.,The large ions and condensation nuclei from flames. Proc. Roy. Irish Acad., 32 A, 58–74 (1916).

    Google Scholar 

  2. Nolan P. J.,The influence of condensation nuclei and dust particles on atmospheric ionisation.Ibidem 41 A, 61–69 (1933).

    Google Scholar 

  3. Nolan P. J.,Experiments on condensation nuclei.Ibidem, 47 A, 25–38 (1941).

    Google Scholar 

  4. Nolan P. J. &Pollak L. W.,The calibration of a photo-electric nucleus counter.Ibidem 51 A, 9–31 (1946).

    Google Scholar 

  5. Nolan P. J. &Kennan E. L.,Condensation nuclei from hot platinum etc. Ibidem, 52 A, 171–190 (1949).

    Google Scholar 

  6. Nolan, P. J. &MacCormaic P. S.,The nuclei produced by disruptive discharge at a water surface. Geophysical Bulletin No. 7, School of Cosmic Physics, Dublin Institute for Advanced Studies (1953).

  7. Nolan J. J. &Guerrini V. H.,The diffusion coefficients and velocities of fall in air of atmospheric condensation nuclei. Proc. Roy. Irish Acad., 43 A, 5–24 (1935).

    Google Scholar 

  8. Nolan J. J., Nolan P. J. &Gormley P. G.,Diffusion and fall of atmospheric nuclei. Ibidem, 45 A, 47–63 (1938).

    Google Scholar 

  9. Nolan P. J.,The recombination law for weak ionisation.Ibidem, 49 A, 67–90 (1943).

    Google Scholar 

  10. Hogg, A. R.,The mobility of the small ions of the atmosphere. Gerlands Beiträge zur Geophysik, 47, 31–59 (1936).

    Google Scholar 

  11. Smith L. G. &Schilling G. F.,The variation of electrical conductivity of air within sealed rooms. J. Atmosph. Terr. Phys.,4, 314–321 (1954).

    Article  Google Scholar 

  12. Nolan P. L.,The disappearance of nuclei in a sealed room.Ibidem, 5, 345–346 (1954).

    Article  Google Scholar 

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Nolan, P.J., Kuffel, E. Coagulation and diffusion of enclosed nuclei. Geofisica Pura e Applicata 31, 97–106 (1955). https://doi.org/10.1007/BF01999590

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