Hybrid RF/DC discharge generator of singlet oxygen for DOIL

0399056 - FZÚ 2014 RIV US eng C - Conference Paper (international conference)
Schmiedberger, Josef - Gregor, Jan - Jirásek, Vít - Rohlena, Karel - Čenský, Miroslav
Hybrid RF/DC discharge generator of singlet oxygen for DOIL.
XIX International Symposium on High-Power Laser Systems and Applications 2012. Bellingham: SPIE, 2013 - (Allakhverdiev, K.), s. 867703. Proceedings of SPIE, 8677. ISBN 978-0-8194-9455-9. ISSN 0277-786X.
[International Symposium on High-Power Laser Systems and Applications (HPLS&A) /19./. Istanbul (TR), 10.09.2012-14.09.2012]
R&D Projects: GA ČR GAP102/12/0723
Institutional support: RVO:68378271 ; RVO:61389021
Keywords : radio-frequency plasma jet * arc plasma jet * hybrid plasma jet * singlet oxygen generation * discharge oxygen-iodine * laser * DOIL * EOIL * ElectricOIL
Subject RIV: BL - Plasma and Gas Discharge Physics

Recent research of high-pressure hybrid radiofrequency/arc (RF/DC) generator of singlet oxygen for DOIL is presented. A stable hybrid RF/DC discharge with a diffusive arc root near the anode side was demonstrated experimentally under well defined conditions. The RF discharge is used for the ignition of the DC arc and its sustainment. The hybrid discharge can be characterized as an RF sustained DC arc between a conventional glowing tungsten cone cathode and a cooled aluminum cylindrical anode with a diffusive arc mode. The generation of singlet oxygen was achieved by a laterally symmetric injection of neutral oxygen in the mixture of O2:He:NO into the Ar+He plasma jet of the hybrid RF/DC plasmatron. Determination of basic characteristics and CFD modeling of key gas flow phenomena are presented.
Permanent Link: http://hdl.handle.net/11104/0226450