Breakdown behavior in radio-frequency argon discharges | Zendy

H. B. Smith | Zendy; Christine Charles | Zendy; R. W. Boswell | Zendy

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Breakdown behavior in radio-frequency argon discharges

Author(s) -

H. B. Smith,

Christine Charles,

R. W. Boswell

Publication year - 2003

Publication title -

physics of plasmas

Language(s) - English

Resource type - Journals

eISSN - 1089-7674

pISSN - 1070-664X

DOI - 10.1063/1.1531615

Subject(s) - physics , argon , radio frequency , range (aeronautics) , atomic physics , electrode , breakdown voltage , plasma , computational physics , volume (thermodynamics) , voltage , analytical chemistry (journal) , materials science , electrical engineering , thermodynamics , nuclear physics , chemistry , quantum mechanics , chromatography , composite material , engineering

The minimum voltage required to break down a discharge Vbrk has long been known to be a strong function of the product of the neutral gas pressure and the electrode separation (pd). This paper investigates the dependence of Vbrk on pd in radio-frequency (rf) systems using experimental, computational and analytic techniques. Experimental measurements of Vbrk in an argon discharge are made for pressures in the range 1–500 mTorr and electrode separations of 2–20 cm. A particle-in-cell simulation is used to investigate a similar pd range and examine the effect of the secondary emission coefficient on the rf breakdown curve, particularly at low pd values. A zero- dimensional global (volume averaged) model is also developed to compare with experimental and simulated measurements of breakdown.

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