Electron and positron swarms: Collision and transport data and kinetic phenomena
Нема приказа
Аутори
Petrović, Z. Lj.Dujko, S.
Banković, A.
Jovanović, Jasmina
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Šašić, O.
Nikitović, Željka D.
Stojanović, Vladimir D.
Marler, J.P.
Конференцијски прилог (Објављена верзија)
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A broad review of electron swarm studies completed recently is presented with a common thread of both being motivated by major applications which use swarm physics as part of their phenomenological foundation and also with a strong presence of nonconservative (electron number changing) collisions. The review is mainly based on the activities of Gaseous Electronics Laboratory Belgrade and it cannot cover all recent and ongoing activities in swarm physics but it attempts to cover the majority of topics covered by swarm physicists in general. Thus we start with recent determinations of the cross sections from the transport data and calculations of the transport data from the cross sections from other sources in gases such as NO, N2O and mixtures of Ar and N2. We proceed to show how the presence of radicals affects the transport coefficients in CF4, a gas with great potential for applications. The basic features of the transport are discussed for dc and rf electric and magnetic fields. In ...those two chapters we mainly focus on kinetic phenomena such as negative absolute mobility, non-conservative effects in particle transport and how angle between magnetic and electric field affects the transport coefficients. We also discuss application of semi empirical formulas. Finally we analyze positron transport and its difference from the transport of electrons. The Positronium formation cross section is significantly larger than that for analogous electron non-conservative processes (i.e. electron attachment). Thus transport of positrons gives a much stronger nonconservative effects including a new effect of the negative differential conductivity (NDC) in the bulk (WB - velocity of the center of the swarm that is relevant for the real space diffusion equation) drift velocity while the conditions required for NDC do not exist for the flux drift velocity (w F - mean velocity of particles in the swarm that is relevant for the calculations of flux when using continuity relation).
Извор:
GD 2008 - 17th International Conference on Gas Discharges and Their Applications, 2008, 71-80Scopus: 2-s2.0-77949393313
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Институција/група
Mašinski fakultetTY - CONF AU - Petrović, Z. Lj. AU - Dujko, S. AU - Banković, A. AU - Jovanović, Jasmina AU - Šašić, O. AU - Nikitović, Željka D. AU - Stojanović, Vladimir D. AU - Marler, J.P. PY - 2008 UR - https://machinery.mas.bg.ac.rs/handle/123456789/779 AB - A broad review of electron swarm studies completed recently is presented with a common thread of both being motivated by major applications which use swarm physics as part of their phenomenological foundation and also with a strong presence of nonconservative (electron number changing) collisions. The review is mainly based on the activities of Gaseous Electronics Laboratory Belgrade and it cannot cover all recent and ongoing activities in swarm physics but it attempts to cover the majority of topics covered by swarm physicists in general. Thus we start with recent determinations of the cross sections from the transport data and calculations of the transport data from the cross sections from other sources in gases such as NO, N2O and mixtures of Ar and N2. We proceed to show how the presence of radicals affects the transport coefficients in CF4, a gas with great potential for applications. The basic features of the transport are discussed for dc and rf electric and magnetic fields. In those two chapters we mainly focus on kinetic phenomena such as negative absolute mobility, non-conservative effects in particle transport and how angle between magnetic and electric field affects the transport coefficients. We also discuss application of semi empirical formulas. Finally we analyze positron transport and its difference from the transport of electrons. The Positronium formation cross section is significantly larger than that for analogous electron non-conservative processes (i.e. electron attachment). Thus transport of positrons gives a much stronger nonconservative effects including a new effect of the negative differential conductivity (NDC) in the bulk (WB - velocity of the center of the swarm that is relevant for the real space diffusion equation) drift velocity while the conditions required for NDC do not exist for the flux drift velocity (w F - mean velocity of particles in the swarm that is relevant for the calculations of flux when using continuity relation). C3 - GD 2008 - 17th International Conference on Gas Discharges and Their Applications T1 - Electron and positron swarms: Collision and transport data and kinetic phenomena EP - 80 SP - 71 UR - https://hdl.handle.net/21.15107/rcub_machinery_779 ER -
@conference{ author = "Petrović, Z. Lj. and Dujko, S. and Banković, A. and Jovanović, Jasmina and Šašić, O. and Nikitović, Željka D. and Stojanović, Vladimir D. and Marler, J.P.", year = "2008", abstract = "A broad review of electron swarm studies completed recently is presented with a common thread of both being motivated by major applications which use swarm physics as part of their phenomenological foundation and also with a strong presence of nonconservative (electron number changing) collisions. The review is mainly based on the activities of Gaseous Electronics Laboratory Belgrade and it cannot cover all recent and ongoing activities in swarm physics but it attempts to cover the majority of topics covered by swarm physicists in general. Thus we start with recent determinations of the cross sections from the transport data and calculations of the transport data from the cross sections from other sources in gases such as NO, N2O and mixtures of Ar and N2. We proceed to show how the presence of radicals affects the transport coefficients in CF4, a gas with great potential for applications. The basic features of the transport are discussed for dc and rf electric and magnetic fields. In those two chapters we mainly focus on kinetic phenomena such as negative absolute mobility, non-conservative effects in particle transport and how angle between magnetic and electric field affects the transport coefficients. We also discuss application of semi empirical formulas. Finally we analyze positron transport and its difference from the transport of electrons. The Positronium formation cross section is significantly larger than that for analogous electron non-conservative processes (i.e. electron attachment). Thus transport of positrons gives a much stronger nonconservative effects including a new effect of the negative differential conductivity (NDC) in the bulk (WB - velocity of the center of the swarm that is relevant for the real space diffusion equation) drift velocity while the conditions required for NDC do not exist for the flux drift velocity (w F - mean velocity of particles in the swarm that is relevant for the calculations of flux when using continuity relation).", journal = "GD 2008 - 17th International Conference on Gas Discharges and Their Applications", title = "Electron and positron swarms: Collision and transport data and kinetic phenomena", pages = "80-71", url = "https://hdl.handle.net/21.15107/rcub_machinery_779" }
Petrović, Z. Lj., Dujko, S., Banković, A., Jovanović, J., Šašić, O., Nikitović, Ž. D., Stojanović, V. D.,& Marler, J.P.. (2008). Electron and positron swarms: Collision and transport data and kinetic phenomena. in GD 2008 - 17th International Conference on Gas Discharges and Their Applications, 71-80. https://hdl.handle.net/21.15107/rcub_machinery_779
Petrović ZL, Dujko S, Banković A, Jovanović J, Šašić O, Nikitović ŽD, Stojanović VD, Marler J. Electron and positron swarms: Collision and transport data and kinetic phenomena. in GD 2008 - 17th International Conference on Gas Discharges and Their Applications. 2008;:71-80. https://hdl.handle.net/21.15107/rcub_machinery_779 .
Petrović, Z. Lj., Dujko, S., Banković, A., Jovanović, Jasmina, Šašić, O., Nikitović, Željka D., Stojanović, Vladimir D., Marler, J.P., "Electron and positron swarms: Collision and transport data and kinetic phenomena" in GD 2008 - 17th International Conference on Gas Discharges and Their Applications (2008):71-80, https://hdl.handle.net/21.15107/rcub_machinery_779 .