Patent ID: 11895763
Assignee: THE ROYAL INSTITUTION FOR THE ADVANCEMENT OF LEARNING/MCGILL UNIVERSITY
Field: Chemical engineering (Chemistry)
Classification: CPC H | IPC H

Claim 7:
8. The plasma source of claim 1, wherein said first hollow electrode is centered within said second hollow electrode in a coaxial geometry, said second hollow electrode has a length in a range between 5 mm and 1 m and said first hollow electrode is receded within said second hollow electrode by at least 1 mm; wherein plasma is induced by a voltage waveform with a sinusoidal excitation frequency in a range between 100 Hz and 100 MHz; and, in the second configuration, in case the non plasma-forming gas in the gap is a static volume, the plasma-forming gas is made to fill said first hollow electrode at a flow rate of at least 0.1 slm.