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J. Laimer, H. Reicher, Q. ul Ain, A. Puchhammer, H. Störi:
"Radio-frequency glow discharges in narrow gaps at atmospheric pressure";
Poster: 19th International Symposium on Plasma Chemistry (ISPC 2009), Ruhr-Universität Bochum/Germany; 26.07.2009 - 31.07.2009; in: "Proc. 19th International Symposium on Plasma Chemistry (ISPC 2009)", Eds. A. von Keudell, J. Winter, M. Böke, V. Schulz-von der Gathen (2009), S. 1.

Dielectric barrier-free radio-frequency (RF) glow dis-charges are used in atmospheric pressure plasma jets (APPJ) for the production of non-equilibrium plasmas. The device may be best characterized as a plasma source operated with a rare gas stabilized RF discharge. Usually the APPJ is operated in the £\ mode at gap spacings in the mm range, where the £\ sheath thickness is in the order of 200 to 300 £gm [1]. Narrow gap spacings are experimen-tally not yet investigated, but it is expected that the bulk region of the £\ discharge should disappear and the dis-charge should exhibit a sheath-only structure [2,3].
The aim of the present work is to deliver experimental evidence for such situations.