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Hybrid RF/DC plasma torch for generation of singlet oxygen in discharge oxygen-iodine laser
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SYSNO ASEP 0355773 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Hybrid RF/DC plasma torch for generation of singlet oxygen in discharge oxygen-iodine laser Author(s) Schmiedberger, Josef (FZU-D) RID
Rohlena, Karel (FZU-D) RID
Gregor, Jan (UFP-V)
Křenek, Petr (UFP-V) RID
Jirásek, Vít (FZU-D) RID
Čenský, Miroslav (FZU-D) RID
Kodymová, Jarmila (FZU-D) RIDSource Title 18th International Symposium on Gas Flow and Chemical lasers & High Power Lasers. - Bellingham : SPIE, 2010 / Dreischuh T. ; Atanasov P.A. ; Sabotinov N.V. - ISSN 0277-786X - ISBN 978-0-8194-8242-6 Pages 77510g/1-77510g/9 Number of pages 9 s. Publication form CD - CD Action International Symposium on Gas Flow and Chemical lasers and High Power Lasers /18./ Event date 30.08.2010-03.09.2010 VEvent location Sofia Country BG - Bulgaria Event type WRD Language eng - English Country US - United States Keywords discharge oxygen-iodine laser ; DOIL ; singlet oxygen generation ; RF plasma jet ; arc plasma jet ; hybrid plasma jet Subject RIV BH - Optics, Masers, Lasers R&D Projects GA202/07/0323 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10100523 - FZU-D (2005-2011) AV0Z20430508 - UFP-V (2005-2011) UT WOS 000287923600015 DOI 10.1117/12.880937 Annotation Latest advances in development of a hybrid RF/DC plasma jet generator of singlet oxygen for a discharge oxygen-iodine laser are presented. This novel apparatus is based on a fast mixing of hybrid Ar+He plasma jet of DC electric arc sustained by an RF discharge with an injected neutral O2+He+NO stream. A stable high-pressure hybrid RF/DC plasmatron with a diffusive arc mode near the anode side (assisted by a plasma anode) was demonstrated experimentally in the mixture Ar:He = ~9.84:5 mmol/s at a power level of 610 W (RF power 490 W and DC arc power 120 W) and at a pressure of 165 Torr. The specific energy of the plasma jet was 41 J/mmol. A generation of singlet oxygen was performed by a laterally symmetric injection of neutral mixture O2:He:NO = 1.5:2.44:0.22 mmol/s into the plasma jet of the hybrid RF/DC plasmatron. The estimated yield of singlet oxygen O2(1Δ) was ~5% at a pressure of 10.5 Torr. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2012
Number of the records: 1