Summary
A novel form of ionic mobility spectrometer is described, based on the intrinsic properties of the construction of thePollak-Nolan nucleus counter. It is used for the size-frequency analysis of an artificial aerosol of Aitken nuclei at various stages in its decay. The first, construction of the instrument has been found to perform quite satisfactorily; suggestions for its improvement are discussed.
Zusammenfassung
Es wird ein neues Modell für ein Spektrometer zur Bestimmung der Ionenbeweglichkeit beschrieben, das auf den wesentlichen Konstruktionseigenschaften des Kernzählers vonPollak undNolan beruht. Es wird zur Analyse der Größenverteilung eines künstlichen Aerosols von Aitken-Kernen in verschiedenen Zerfallstadien benützt. Das Instrument hat sich in seiner ersten Ausführung als recht befriedigend erwiesen, und es werden Anregungen für seine Verbesserung diskutiert.
Résumé
L'auteur présente un nouveau modèle de spectromètre pour la mesure de la mobilité des ions. Cet appareil est basé sur les propriétés de conception du compteur de noyaux dePollak etNolan. Il s'emploie pour analyser la répartition des grandeurs d'un aérosole artificiel comprenant des noyaux de Aitken à différents stades de décomposition. L'instrument est tout à fait satisfaisant dans sa forme originale et l'on présente différentes suggestions pour l'améliorer encore.
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References
McGreevy, G.: A Condensation Method Particle Size Spectrometer. Arch. Met. Geoph. Biokl. A14, 149–175 (1964).
Israël, H.: Zur Theorie und Methodik der Größenbestimmung von Luftionen. Gerlands Beitr. Geophys.31, 173–216 (1931),36, 24–37 (1932).
Nolan, P. J., andJ. Deignan: Observations on Atmospheric Condensation Nuclei in Stored Air. Proc. Roy. Irish Acad.51-A, 239–249 (1948).
Rich, T. A., L. W. Pollak, andA. L. Metnieks: Experiments with Condensation Nucleus Size Spectrometers. Geofis. pura appl.46, 145–163 (1960).
O'Connor, T. C., andV. P. V. Flanagan: The Measurement of Size Distributions in Aitken Nuclei. Geofis. pura appl.50, 60–66 (1961).
Nolan, J. J., andJ. G. O'Keefe: Multiply Charged Large Ions. Proc. Roy. Irish Acad.41-A, 26–40 (1933).
Nolan, P. J., andT. C. O'Connor: Size, Mobility and Charge of Multiply Charged Ions. Proc. Roy. Irish Acad.57-A, 131–171 (1955).
Nolan, P. J., andE. Kuffel: Metal Point Discharge Nuclei and the Production of Multiple Charged Ions from Condensation Nuclei. Geofis. pura appl.36, 201–210 (1957).
Rich, T. A., L. W. Pollak andA. L. Metnieks: Estimation of Average Size of Submicron Particles from the Number of All and Uncharged Particles. Geofis. pura appl.44, 233–241 (1959).
Keefe, D., P. J. Nolan andT. A. Rich: Charge Equilibrium in Aerosols According to the Boltzmann Law. Proc. Roy. Irish Acad.60-A, 27–45 (1959).
Pollak, L. W., andA. L. Metnieks: On the Validity of Boltzmann's Distribution Law for the Charges of Aerosol Particles in Electrical Equilibrium. Geofis. pura appl.53 111–133 (1962).
Rich, T. A.: The Average Size of Submicron Particles. Int. J. Air. Pollution1, 288–292 (1959).
Vassails, G.: Ann. Physique4, 125 (1949).
Evans, G. R., andA. A. Watson: Production of Hypersensitive Condensation Nuclei. Nature196 4856, 729–730 (1962).
Metnieks, A. L., andL. W. Pollak: Instruction for Use of Photoelectric Condensation Nucleus Counters. Geophys. Bull. No. 16, School Cosmic Phys., Dublin Inst. Advanced Studies (1962).
Flanagan, V. P. V., andT. C. O'Connor: Ionization Equilibrium in Aerosols. Geofis. pura appl.50, 148–154 (1961).
Rich, T. A., L. W. Pollak, andA. L. Metnieks: On the Time Required for Aerosols to Reach Electrical Equilibrium. Geofis. pura appl.51, 217–224 (1962).
Pollak, L. W., andA. L. Metnieks: The Approach to Charge Equilibrium in a Stored Aerosol During Aging. Geofis. pura appl.51, 225–236 (1962).
Metnieks, A. L., andL. W. Pollak: Tables and Graphs for Use in Aerosol Physics, Part I. Mobility v. Radius and vice versa. Geophys. Bull. No. 19, School Cosmic Phys., Dublin Inst. Advanced Studies (1961).
Pollak, L. W., T. C. O'Connor, A. L. Metnieks andR. Fürth: On the Determination of the Diffusion Coefficient of Condensation Nuclei Using the Static and Dynamic Methods. Geofis. pura appl.34, 177–195 (1956).
Junge C.: Die Konstitution des atmosphärischen Aerosols. Ann. Met. (Beiheft) 1952.
Dessens, H.: The Use of Spider's Threads in the Study of Condensation Nuclei. Quart. J. Roy. Met. Soc.75, 23 (1949).
Pollak, L. W., andA. L. Metnieks: Further Investigations of the Fog in the Photo-electric Condensation Nucleus Counter. Geofis. pura appl.42, 89–107 (1959).
Metnieks, A. L., andL. W. Pollak: Tables and Graphs for Use in Aerosol Physics, Part II: Number of Uncharged Particles in per cent of Total Number of Particles v. Radius and vice versa. Geophys. Bull. No. 20, School Cosmic Phys. Dublin Inst. Advanced Studies (1961).
Nolan J. J., andV. H. Guerrini: The Diffusion Coefficient and Velocity of Fall in Air of Atmospheric Condensation Nuclei. Proc. Roy. Irish Acad.43-A, 5–24 (1935).
Pollak, L. W., andA. L. Metnieks: On the Determination of the Diffusion Coefficient of Heterogeneous Aerosols by the Dynamic Method. Geofis. pura, appl.37, 183–190 (1957).
Pollak, L. W., andA. L. Metnieks: The Diffusion Coefficient of Large Ions. Recent Advances in Atmospheric Electricity (1959).
Pollak, L. W., andA. L. Metnieks: The Influence of Pressure and Temperature on the Counting of Condensation Nuclei. Part II. Influence of Low Temperature. Geofis. pura appl.50, 7–21 (1961).
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McGreevy, G. The size spectrum of condensation nuclei by a new form of the ionic mobility method. Arch. Met. Geoph. Biokl. A. 14, 318–342 (1965). https://doi.org/10.1007/BF02247568
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DOI: https://doi.org/10.1007/BF02247568