Abstract
Current wave forms of initial stages of discharge formation in a short negative point-to-plane gap have been measured with a nanosecond time resolution in hydrogen at pressures (12.5–76) kPa and for various overvoltages and cathode point radii. The measurements revealed the existence of a stepped form of negative corona current pulses in hydrogen. To test existing models for negative corona pulse formation, effects of changing cathode secondary electron emission were studied using copper and brass cathodes coated by CuI and graphite. It is concluded that a negative corona pulse is associated with the ignition of a cathode-directed streamer in the vicinity of the cathode. We report what we believe are the first experimental observations of non-Trichel oscillations of negative corona current with a frequency of (1–10) MHz.
Similar content being viewed by others
References
L.B. Loeb:Electrical Coronas: Their Basic Physical Mechanism, University of California, Berkeley, 1965.
M. Černák and T. Hosokawa: Appl. Phys. Lett.52 (1988) 185.
M. Černák, T. Hosokawa, and I. Odrobina: J. Phys. D26 (1993) 607.
R. Morrow: Phys. Rev. A32 (1985) 3821.
R. Morrow: Phys. Rev. A32 (1985) 1799.
A.P. Napartovich, Yu.S. Akishev, A.A. Deryugin, I.V. Kochetov, M.V. Pankin, and N.I. Trushkin: J. Phys. D30 (1997) 2726.
T. Reess and J. Paillol: J. Phys D30 (1997) 3115.
M. Černák, T. Hosokawa, S. Kobayashi, and T. Kaneda: J. Appl. Phys.83 (1998) 5678.
M. Černák and T. Hosokawa: IEEE Trans. El. InsulationEI-24 (1989) 699.
J.D. Skalný, L. Vagnerová, and D. Dindošová: inEurophysics Conf. Abstracts: 13th ESCAMPIG, Poprad (Slovakia), August 27–30, 1996 (Eds. P. Lukáč, I. Košinár, and J. Skalný), European Physical Society, Bratislava, 1996, p. 481.
M. Černák and T. Hosokawa: Phys. Rev. A43 (1991) 1107.
M. Černák and T. Hosokawa: Austral. J. Phys.45 (1992) 193.
E. Motyl and R. Kacprzyk: inProc. Contrib. Papers of 8th Int. Symp. on Electrets, Paris, 7–9 September, 1994 (Eds. J. Lewiner, D. Marisseau, and C. Alquié), ESPCI, Paris, 1994, p. 31.
H. Mitsui, Koyanagi, S. Kenjo, T. Yamauchi, and M. Tari: IEEE Trans. Electr. InsulationEI-18 (1983) 536.
D.A. Scott and G.N. Haddad: J. Phys. D19 (1986) 11507.
R. Zentner: Elektrotechnische Z. A91 (1970) 303.
R. Zentner: Z. Angew. Phys.29 (1970) 294.
K. Torsethaugen and R.S. Sigmond: inProc. 11th Int. Conf. On Phenomena in Ionised Gases, Prague 1973 (Eds. L. Pekárek and L. Láska), Czechoslovak Acad. Sci., Praha, 1973, p. 195.
M. Laan and V. Perelygin: inProc. Contrib. Papers 20th ICPIG, Pisa (Italy), 8–12 July, 1991 (Eds. V. Palleschi and M. Vaselli), Institute of Atomic and Molecular Physics, Pisa, 1991, p. 929.
K.H. Baylis and R.V. Latham: Vacuum35 (1985) 211.
I. Odrobina and M. Černák: J. Appl. Phys.78 (1995) 3635.
K.J. Schmid-Tiedemann: Z. Physik150 (1958) 299.
Th. Reess, P. Ortega, A. Gilbert, P. Domens, and P. Pignolet: J. Phys. D28 (1995) 2308.
R.S. Sigmond: inElectrical Breakdown of Gases (Eds. J.M. Meek and J.D. Craggs), Wiley, 1978, Chapt. 4, p. 353.
Author information
Authors and Affiliations
Additional information
This work was supported by the Scientific Grant Agency of the Ministry of Education and Academy of Sciences of Slovak Republic (Project No. 1/5190/98).
Rights and permissions
About this article
Cite this article
Zahoranová, A., Černák, M., Štefečka, M. et al. Stepped form of negative corona current pulses in hydrogen. Czech J Phys 49, 1721–1735 (1999). https://doi.org/10.1023/A:1022884020575
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1023/A:1022884020575