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Söderström, Daniel
Publikasjoner (6 av 6) Visa alla publikasjoner
Söderström, D., Baránková, H. & Bárdos, L. (2008). Time evolution of the space-charge sheath in an rf hollow cathode. Journal of Physics, Conference Series, 100(6), 062020
Åpne denne publikasjonen i ny fane eller vindu >>Time evolution of the space-charge sheath in an rf hollow cathode
2008 (engelsk)Inngår i: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 100, nr 6, s. 062020-Artikkel i tidsskrift (Fagfellevurdert) Published
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Identifikatorer
urn:nbn:se:uu:diva-97237 (URN)10.1088/1742-6596/100/6/062020 (DOI)000275655200216 ()
Tilgjengelig fra: 2008-05-07 Laget: 2008-05-07 Sist oppdatert: 2017-12-14bibliografisk kontrollert
Söderström, D., Baránková, H. & Bárdos, L. (2007). On Dimensions of Atmospheric-Pressure Hollow Cathodes. IEEE Transactions on Plasma Science, 35(3), 522-526
Åpne denne publikasjonen i ny fane eller vindu >>On Dimensions of Atmospheric-Pressure Hollow Cathodes
2007 (engelsk)Inngår i: IEEE Transactions on Plasma Science, ISSN 0093-3813, E-ISSN 1939-9375, Vol. 35, nr 3, s. 522-526Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The hollow cathode is known as a source of high-density plasmas. This property is due to the hollow-cathode effect (HCE), which can be explained by the oscillations of fast electrons between repelling potentials of opposing space-charge sheaths. At atmospheric pressure, one should be able to create an HCE by adjusting the dimension of the hollow cathode. Experiments show that the dimensions could be as large as 500, so that the sheath thickness may be on the order of 100. Theoretical models of the atmospheric-pressure sheaths based on the conventional Child-Langmuir approach give the sheath thicknesses on the order of 10, which contradicts the experiments. We introduce here a new model which takes into account three groups of electrons: slow, fast, and secondary. By adding a group of fast and secondary electrons, we show that the sheath thickness increases as compared with only slow electrons present.

Emneord
Atmospheric pressure, hollow cathode, radio frequency (RF), sheaths
HSV kategori
Identifikatorer
urn:nbn:se:uu:diva-97235 (URN)10.1109/TPS.2007.897894 (DOI)000247352900001 ()
Tilgjengelig fra: 2008-05-07 Laget: 2008-05-07 Sist oppdatert: 2017-12-14bibliografisk kontrollert
Söderström, D., Baránková, H. & Bárdos, L. (2007). Space-charge sheaths in atmospheric pressure hollow cathodes. In: : . Paper presented at Proceedings of the 16th Symp. on Applications and Plasma Processing (SAPP XVI). (pp. 261-262).
Åpne denne publikasjonen i ny fane eller vindu >>Space-charge sheaths in atmospheric pressure hollow cathodes
2007 (engelsk)Konferansepaper, Publicerat paper (Annet vitenskapelig)
HSV kategori
Identifikatorer
urn:nbn:se:uu:diva-97236 (URN)
Konferanse
Proceedings of the 16th Symp. on Applications and Plasma Processing (SAPP XVI).
Tilgjengelig fra: 2008-05-07 Laget: 2008-05-07 Sist oppdatert: 2016-04-11bibliografisk kontrollert
Söderström, D., Barankova, H. & Bardos, L. (2007). Time evolution of the space-charge sheath in an rf hollow cathode. In: : . Paper presented at Int. Vacuum Congress (IVC-17) (pp. paper PSTFO2-Or1).
Åpne denne publikasjonen i ny fane eller vindu >>Time evolution of the space-charge sheath in an rf hollow cathode
2007 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert)
HSV kategori
Identifikatorer
urn:nbn:se:uu:diva-14297 (URN)
Konferanse
Int. Vacuum Congress (IVC-17)
Tilgjengelig fra: 2008-04-25 Laget: 2008-04-25 Sist oppdatert: 2016-04-11bibliografisk kontrollert
Barankova, H., Bardos, L. & Söderström, D. (2006). Hybrid Atmospheric Plasma in Molecular Gas. In: : . Paper presented at Int. Conf. Metall. Coat.&Thin Films - ICMCTF-06, San Diego, May, Paper G3-6.
Åpne denne publikasjonen i ny fane eller vindu >>Hybrid Atmospheric Plasma in Molecular Gas
2006 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert)
HSV kategori
Identifikatorer
urn:nbn:se:uu:diva-26457 (URN)
Konferanse
Int. Conf. Metall. Coat.&Thin Films - ICMCTF-06, San Diego, May, Paper G3-6
Tilgjengelig fra: 2007-02-16 Laget: 2007-02-16 Sist oppdatert: 2016-07-12
Barankova, H., Bardos, L. & Söderström, D. (2005). Cold Atmospheric Plasma in Nitrogen and Air Generated by the Hybrid Plasma Source. In: AVS 52nd Int. Meeting, Boston, October-November 2005, Paper PS-WeA3..
Åpne denne publikasjonen i ny fane eller vindu >>Cold Atmospheric Plasma in Nitrogen and Air Generated by the Hybrid Plasma Source
2005 (engelsk)Inngår i: AVS 52nd Int. Meeting, Boston, October-November 2005, Paper PS-WeA3., 2005Konferansepaper, Publicerat paper (Annet vitenskapelig)
Identifikatorer
urn:nbn:se:uu:diva-77001 (URN)
Tilgjengelig fra: 2006-03-10 Laget: 2006-03-10
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