Počet záznamů: 1

Hybrid RF/DC plasma torch for generation of singlet oxygen in discharge oxygen-iodine laser

  1. 1.
    0355773 - FZU-D 2012 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
    Schmiedberger, Josef - Rohlena, Karel - Gregor, Jan - Křenek, Petr - Jirásek, Vít - Čenský, Miroslav - Kodymová, Jarmila
    Hybrid RF/DC plasma torch for generation of singlet oxygen in discharge oxygen-iodine laser.
    18th International Symposium on Gas Flow and Chemical lasers & High Power Lasers. Bellingham: SPIE, 2010 - (Dreischuh, T.; Atanasov, P.; Sabotinov, N.), 77510G/1-77510G/9. Proceedings of SPIE, 7751. ISBN 978-0-8194-8242-6. ISSN 0277-786X.
    [International Symposium on Gas Flow and Chemical lasers and High Power Lasers /18./. Sofia (BG), 30.08.2010-03.09.2010]
    Grant CEP: GA ČR GA202/07/0323
    Výzkumný záměr: CEZ:AV0Z10100523; CEZ:AV0Z20430508
    Klíčová slova: discharge oxygen-iodine laser * DOIL * singlet oxygen generation * RF plasma jet * arc plasma jet * hybrid plasma jet
    Kód oboru RIV: BH - Optika, masery a lasery
    http://dx.doi.org/10.1117/12.880739

    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.
    Trvalý link: http://hdl.handle.net/11104/0006315