Secondary Particle Generation by Electrons Incident on the Metal Surface
https://doi.org/10.56304/S2304487X21050059
Abstract
The dispersion of the metal surface by a corona discharge is investigated. In particular, the interaction of the corona discharge with the silver surface is considered. A diffusion aerosol spectrometer is used to measure the size distribution of generated silver particles. The diffusion aerosol spectrometer can measure the particle spectrum and concentration from 3 nm to 5 μm. The determined particle size distributions are analyzed. The analysis of the experimental data shows that particles are generated by nucleation from the metal vapor, and sources of this vapor are metal atoms produced in the interaction of the electric discharge with the metal surface. To understand the mechanism of silver vapor generation, the concentration of metal atoms is estimated. These atoms are emitted from the metal surface due to the interaction of charged particles with the metal. The theoretical estimate is based on the induction of the charge in the metal by incident charged particles. The momentum transferred to ions of the crystal lattice by an incident charged particle, the cross section for interaction of the incident particle with metal atoms near the surface, and the dispersion coefficient are calculated in the nonrelativistic approximation disregarding the collective interaction of metal atoms and electrons. The comparison of the experimental data with theoretical results indicates that sublimation of atoms from the metal surface is due to the direct interaction between incident particles and ions of the crystal lattice rather than to the thermal surface effect.
Supporting agencies: The work was carried out with the support of the Russian Foundation for Basic Research 19-05-50007 (Microcosm)
About the Authors
K. M. Erokhin
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
11540
Moscow
V. A. Zagaynov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
115409
Moscow
N. P. Kalashnikov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
115409
Moscow
V. V. Maksimenko
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
115409
Moscow
References
1. Julanov Yu. V., Lushnikov A. A., Zagaynov V. A. Diffusion aerosol spectrometer // Atmospheric Research. 2002. V. 62. P. 295–302. doi: 10.1016/S0169-8095(02)00015-7
2. Zagaynov V. A. The inverse Problem and Aerosol Measurements, in: Agranovski I. E. (Ed.), Aerosols – Science and Technology. Weinheim: Wiley, 2009. P. 241–269.
3. Landau L. D., Lifshic E. M., Teoreticheskaya fizika, T. VIII, Elektrodinamika sploshnyh sred [Theoretical Physics, Vol. VIII, Electrodynamics of continuous media], Moscow, Nauka. GRFML Publ., 1982, 620 p.
4. Bohr N. The penetration of atomic particles through matter. Mat.-Fys. Medd. Kgl. Danske Vid. Selskab, 1948. V. XVIII. № 8. 144 p.
5. Thomson J. J. Conduction of Electricity through Gases. Cambridge, 1906.
6. Erohin K. M., Kalashnikov N. P., Zavisimost’ energii svyazi kristallicheskoj reshetki metallov ot srednego chisla elektronov provodimosti [Dependence of the binding energy of the crystal lattice of metals on the average number of conduction electrons], Fizika tverdogo tela, 2017, vol. 9, pp. 1667–1672 (in Russian).
7. Kurnaev V. A., Protasov Yu. S., Cvetkov I. V., Vvedenie v puchkovuyu elektroniku [Introduction to beam electronics], Moscow, MIFI Publ., 2008, 452 р.
8. Zagaynov V. A., Maksimenko V. V., Kalashnikov N. P., Agranovskii I. E., Chausov V. D., Zagaynov D. K. [Formation of particles in the corona discharge zone], Tezisy dokladov. L Mezhdunarodnaya Tulinovskaya konferenciya po vzaimodejstviyu zaryazhennyh chastic s kristallami, [Abstracts of reports. L International Tulin Conference on the Interaction of Charged Particles with Crystals ], Moscow, MGU im. M. V. Lomonosova Publ., 2021 (In Russian).
Review
For citations:
Erokhin K.M., Zagaynov V.A., Kalashnikov N.P., Maksimenko V.V. Secondary Particle Generation by Electrons Incident on the Metal Surface. Vestnik natsional'nogo issledovatel'skogo yadernogo universiteta "MIFI". 2021;10(5):390-396. (In Russ.) https://doi.org/10.56304/S2304487X21050059
Views:
104
Email this article 