What question did this study set out to answer?

Determine the current–voltage characteristics of microhollow cathode discharges and evaluate conditions required for stable parallel operation without ballasts at higher pressures.

January 1, 1996Applied Physics Letters

Microhollow cathode discharges

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Authors

KSKarl H. SchoenbachTexas Tech University RVR. VerhappenOld Dominion University TTT. TessnowKeysight Technologies (United States)

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Implication

Experimental study demonstrates ballastless parallel operation of microhollow cathode discharges in argon and air, suggesting viable scaling to high-pressure plasma arrays.

Key Points

Determine the current–voltage characteristics of microhollow cathode discharges and evaluate conditions required for stable parallel operation without ballasts at higher pressures.
Measured direct-current and pulsed current–voltage characteristics of hollow cathode discharges and predischarges in argon using a 0.7 mm hole diameter.
Tested parallel discharge scaling using an array of 75 μm diameter cathode rings under pulsed conditions in air at pressures up to 350 Torr.
Discharges in argon exhibited a positive current–voltage slope at pressures up to approximately 50 Torr and currents up to 20 mA at a 0.7 mm hole diameter, permitting ballastless parallel operation.
Pulsed excitation of a 75 μm cathode ring array achieved stable parallel operation of more than 50 discharges simultaneously at 350 Torr in air without individual ballast resistors.

Cite This Study

Schoenbach et al. (1996) studied this question.

synapsesocial.com/papers/6a8f8febac7c20142b2d6520 https://doi.org/10.1063/1.116739

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Implication

Experimental study demonstrates ballastless parallel operation of microhollow cathode discharges in argon and air, suggesting viable scaling to high-pressure plasma arrays.

Microhollow cathode discharges

Discussion

Member takes

Implication

Key Points

Cite This Study

Microhollow cathode discharges

Discussion

Member takes

Implication

Key Points

Cite This Study

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