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Charging of metal microparticles in electron flow

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Abstract

We have studied the charging of copper microparticles in electron flow. It is established that the parameters of secondary electron emission from microparticles can significantly differ from those for metal films and volume targets. Conditions are determined under which negative charging of micron-sized copper particles in electron flow takes place. In the case of spherical microparticles, secondary emission is significantly increased as a result of the oblique incidence of primary electrons. A general approach is proposed that can be used to estimate the electron energy necessary for charging microparticles to high negative potentials.

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Authors and Affiliations

  1. Ioffe Physical Technical Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russia

    M. V. Gorokhov, V. M. Kozhevin, D. A. Yavsin & S. A. Gurevich

Authors
  1. M. V. Gorokhov
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  2. V. M. Kozhevin
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  3. D. A. Yavsin
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  4. S. A. Gurevich
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Corresponding author

Correspondence to M. V. Gorokhov.

Additional information

Original Russian Text © M.V. Gorokhov, V.M. Kozhevin, D.A. Yavsin, S.A. Gurevich, 2016, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2016, Vol. 42, No. 6, pp. 55–61.

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Gorokhov, M.V., Kozhevin, V.M., Yavsin, D.A. et al. Charging of metal microparticles in electron flow. Tech. Phys. Lett. 42, 305–308 (2016). https://doi.org/10.1134/S1063785016030202

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  • DOI: https://doi.org/10.1134/S1063785016030202

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