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Abstract:

Linear space charge perturbations of focused electron beams flowing between cylindrical and spherical electrodes on convergent or divergent trajectories are studied, and the amplification of high-frequency signals when the flow is modulated at one electrode is computed. It is shown that divergent beams give the largest amplification effect. The instability of electron beams drifting through grounded grids (Pierce instability in cylindrical or spherical diodes) is also considered. The instability threshold occurs at higher critical currents when the curvature of the electrodes is large. Results for planar electrodes are recovered in the limit of zero curvature devices. Spherical configurations have better signal amplification and stability properties than similar planar or cylindrical systems. © 1994 American Institute of Physics.

Registro:

Documento: Artículo
Título:Microwave signal amplification and Pierce instability on radial electron flows in cylindrical and spherical diodes
Autor:Gnavi, G.; Gratton, F.T.
Filiación:Institute for Plasma Physics, Physics Department, University of Buenos Aires, 1428 Buenos Aires, Argentina
Año:1994
Volumen:1
Número:11
Página de inicio:3676
Página de fin:3685
DOI: http://dx.doi.org/10.1063/1.870902
Título revista:Physics of Plasmas
ISSN:1070664X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1070664X_v1_n11_p3676_Gnavi

Referencias:

  • Dunn, A.D., (1971) Models of Particles and Moving Media, , (Academic, New York)
  • Gnavi, G., Gratton, F.T., (1986) IEEE Trans. Plasma Sci., PS-14, p. 11
  • Gratton, F.T., Gnavi, G., (1987) Phys. Fluids, 30, p. 548
  • Gnavi, G., Gratton, F.T., (1988) Nucl. Instrum. Methods, p. 112. , Special Issue 271
  • Gnavi, G., del Río, R., Minotti, F., (1992) Current Topics in Astrophysical and Fusion Plasma Research, p. 153. , edited by M. Heyn and W. Kernbichler (dbv-Verlag, Graz, Austria
  • Lau, Y., Krall, J., Friedman, M., Serlin, V., (1988) IEEE Trans. Plasma Sci., PS-16, p. 249
  • Dorodnov, A.M., Petrosov, B.A., (1981) Sov. Phys. Tech. Phys., 26, p. 304
  • Vorob’ev, Y.V., Zhukov, V.A., (1987) Sov. Phys. Tech. Phys., 32, p. 81
  • Nikonov, A.G., Roife, I.M., Savel’ev, Y.M., Engel’ko, V.I., (1987) Sov. Phys. Tech. Phys., 32, p. 50
  • Chetvertkov, V.I., (1987) Sov. Phys. Tech. Phys., 32, p. 54
  • Kadish, A., (1985) IEEE Trans. Plasma Sci., PS-13, p. 188
  • Kuhn, S., (1987) Proceedings of the 1987 International Conference on Plasma Physics, Kiev, 2, p. 954. , edited by A. G. Sitenko (World Scientific, Singapore, Invited Papers, Vol
  • Cary, J.R., Lemon, D.S., (1982) J. Appl. Phys., 53, p. 3303
  • Hörhager, M., Kuhn, S., (1986) Phys. Fluids B, 2, p. 2741
  • Kuhn, S., (1984) Phys. Fluids, 27, p. 1834
  • Godfrey, B.B., (1987) Phys. Fluids, 30, p. 1553
  • Crystal, T.L., Gray, P.C., Lawson, W.S., Birdsall, C.K., Kuhn, S., (1991) Phys. Fluids B, 3, p. 244
  • Birdsall, C.K., Langdon, A.B., (1991) Plasma Physics via Computer Simulation, , (Institute of Physics, Bristol)
  • Birdsall, C.K., private communication, , June
  • Marshall, L.C., Sahlin, H.L., Electrostatic and Electromagnetic Confinement of Plasmas and the Phenomenology of Relativistic Electron Beams (1975) Annals of the New York Academy of Sciences, 251. , New York Academy of Sciences, New York
  • Poukey, J.W., Quintenz, J.P., Olson, C.L., (1981) Appl. Phys. Lett., 38, p. 20
  • Miley, G.H., (1992) Current Topics in Astrophysical and Fusion Plasma Research, p. 103. , edited by M. Heyn and W. Kernbichler (dbv-Verlag, Graz, Austria
  • Mikhailovskii, A.B., (1974) Theory of Plasma Instabilities., 1. , (Consultants Bureau, New York)
  • Pierce, J.R., (1961) J. Nucl. Energy C: Plasma Phys., 2, p. 135
  • Pierce, J.R., (1944) J. Appl. Phys., 15, p. 721
  • Alexandrov, A.F., Bogdankevich, L.S., Rukhadze, A.A., (1984) Principles of Plasma Electrodynamics, , (Springer, New York)
  • Kavchuk, V.N., Kondratenko, A.N., (1987) Sov. Phys. Tech. Phys., 32, p. 44
  • Abramowitz, M., Stegun, I.A., (1965) Handbook of Mathematical Functions, , (Dover, New York)

Citas:

---------- APA ----------
Gnavi, G. & Gratton, F.T. (1994) . Microwave signal amplification and Pierce instability on radial electron flows in cylindrical and spherical diodes. Physics of Plasmas, 1(11), 3676-3685.
http://dx.doi.org/10.1063/1.870902
---------- CHICAGO ----------
Gnavi, G., Gratton, F.T. "Microwave signal amplification and Pierce instability on radial electron flows in cylindrical and spherical diodes" . Physics of Plasmas 1, no. 11 (1994) : 3676-3685.
http://dx.doi.org/10.1063/1.870902
---------- MLA ----------
Gnavi, G., Gratton, F.T. "Microwave signal amplification and Pierce instability on radial electron flows in cylindrical and spherical diodes" . Physics of Plasmas, vol. 1, no. 11, 1994, pp. 3676-3685.
http://dx.doi.org/10.1063/1.870902
---------- VANCOUVER ----------
Gnavi, G., Gratton, F.T. Microwave signal amplification and Pierce instability on radial electron flows in cylindrical and spherical diodes. 1994;1(11):3676-3685.
http://dx.doi.org/10.1063/1.870902