2차원 4극 전극 사이에서의 하전 입자의 동전기력학적 거동

Park, Seok-Joo;Lim, Jeong-Hwan;Kim, Sang-Do;Choi, Ho-Kyung;Park, Hyun-Seol;Park, Young-Ok;McMurry, Peter-H.

  • 발행 : 2001.05.01


An inhomogeneous hyperbolic electric field is established among two-dimensional quadrupole electrodes to which an ac voltage is applied. Conditions under which charged particles are focused into a narrow axis region of the plug laminar flow are discussed. The aerodynamic forces influence the behavior of the charged particles in the quadrupole electric field. We derived the dimensionless equations of motion of a charged particle in the alternating quadrupole electric field, and discussed particle trajectories and focusing performance in terms of two dimensionless parameters, which are functions of particle size, operating pressure, and the amplitude and frequency of applied AC voltage, with the results of numerical simulations and experiments.


동전기장;입자 집중;4극 전극;4극셀;나노입자


  1. Friedlander, S. K., 1977, Smoke, Dust and Haze, John Wiley & Sons, New York
  2. Bae, G., Kinney, P. D., Liu, B. Y. H., and Pui, D. Y. H., 1998, 'Investigation of Aerosol Spatial Distributions Downstream of a Critical Orifice at Low Pressure,' Aerosol Sci. Technol., Vol. 28, pp. 479-488
  3. Davis, E. J., 1985, 'A History of Single Aerosol Particle Levitation,' Aerosol Sci. Technol., Vol. 26, pp. 212-254
  4. Iwamoto, T., Itoh, M., and Takahashi, K., 1991, 'Theoretical Study on the Stability Characteristics of a Quadrupole Cell,' Aerosol Sci. Technol., Vol. 15, pp. 127-134
  5. Masuda, S. and Fujibayashi, K., 1970, 'Electrodynamics of Charged Dust Particles Within an AC Quadrupole Electric Field. Theoretical Treatment,' Electrical Engineering in Japan, Vol. 90, pp. 861-869
  6. Aoyama, M. and Masuda, S., 1970, 'Classification of Fine Particles by Means of Two-Dimensional Alternating Quadrupole Field,' Electrical Engineering in Japan, Vol. 90, pp. 870-879
  7. Szabo, I., 1986, 'New Ion-Optical Device Utilizing Oscillatory Electric Fields. I. Principle of Operation and Analytical Theory of Multipole Devices with Two-Dimensional Electric Fields,' Int. J. Mass Spectrometry Ion Processes, Vol. 73, pp. 197-235
  8. Masuda, S. and Fujibayashi, K., 1970, The Electrodynamic Behaviour of Charged Dust Particles in Alternating Quadrupole Electric Fields, 1st International Conference of Static Electricity, Vienna/Austria, pp. 384-397
  9. Liu, P., Ziemann, P. J., Kittelson, D. B., and McMurry P. H., 1995, 'Generating Particle Beams of Controlled Dimensions and Divergence: II. Experimental Evaluation of Particle Motion in Aerodynamic Lenses and Nozzle Expansions,' Aerosol Sci. Technol., Vol. 22, pp. 314-324
  10. Liu, P., Ziemann, P. J., Kittelson, D. B., and McMurry P. H., 1995, 'Generating Particle Beams of Controlled Dimensions and Divergence: I. Theory of Particle Motion in Aerodynamic Lenses and Nozzle Expansions,' Aerosol Sci. Technol., Vol. 22, pp. 293-313
  11. Peter, A., Wichmann, E. H., Tuch, T., Heinrich, J., and Heyder, J., 1997, 'Respiratory Effects are Associated with the Number of Ultrafine Particles,' Am. J. Respir. Crit. Care Med., Vol. 155, pp. 1376-1383
  12. Oberdorster, G., Gelein, R. M., Ferin, J., and Weiss, B., 1995, 'Association of Particulate Air Pollution and Acute Mortality, Involvement of Ultrafine Particles,' Inhalation Toxicol., Vol. 7, pp. 111-124
  13. Oberdorster, G., Gelein, R., Johnston, C. J., Mercer, P., Corson, N., and Finkelstein, J. N., 1998, Ambient Ultrajine Particles: Inducers of Acute Lung Injury, In: Relationships between Respiratory Disease and Exposure to Air Pollution, Dungworth, DL, et al., eds., ILSI Press, Washington, DC, pp. 216-229
  14. Oberdorster, G., Ferin, J., and Lehnert, B. E., 1994, 'Correlation between Particle-Size, In-Vivo Particle Persistence, and Lung Injury, ' Environ. Health Perspect., Vol. 102,pp. 173-179
  15. Bagley, S. T., Baumgard, L. D., Gratz, L. D., Johnson, J. H., and Leddy, D. G., 1996, Characterization of Fuel and Aftertreatment Device Effects on Diesel Emissions, Health Effect Institute, Research Report Number 76, September
  16. Oberdorster, G., Ferin, J., Gelein, R., Sonderholm, S. C., and Finkelstein, J., 1992, 'Role of the Alveolar Macrophage during Lung Injury: Studies with Ultra-Fine Particles,' Environ. Health Perspect., Vol. 97, pp. 193-199
  17. Gerlich, D., 1992, In State-Selected and State-to-State Ion Molecule Reaction Dynamics. Part 1, Experiment, Vol. LXXXII, C. Y. Ng and M. Baer, Eds., Wiley, New York, pp. 1-176
  18. Davis, E. J., 1997, 'Electrodynamic Balance Stability Characteristics and Applications to the Study of Aerocolloidal Particles,' Langmuir, Vol. 1, pp. 379-387