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Generation and Detection of Hyperpolarized Xenon

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    0092602 - ÚPT 2010 RIV US eng C - Conference Paper (international conference)
    Buchta, Zdeněk - Rychnovský, Jan - Starčuk jr., Zenon - Lazar, Josef
    Generation and Detection of Hyperpolarized Xenon.
    [Produkce a detekce polarizovaného xenonu.]
    IEEE Conference Proceedings - Africon 2007. Danvers: Institute of Electrical and Electronics Engineers, Inc, 2007, s. 95-98. ISBN 978-1-4244-0986-0.
    [IEEE Africon 2007. Windhoek (NA), 26.09.2007-28.09.2007]
    R&D Projects: GA ČR GA102/04/2109; GA MŠMT(CZ) LC06007; GA MŠMT 2C06012; GA AV ČR IAA200650504; GA AV ČR IAA1065303
    Institutional research plan: CEZ:AV0Z20650511
    Keywords : semiconductor lasers * laser stability * laser biomedical applications * optical pumping * nuclear magnetic resonance * magnetic resonance imaging
    Subject RIV: BH - Optics, Masers, Lasers

    We present the experimental results of generation and of detection of hyperpolarized xenon obtained by 4.7 T, 200 MHz magnetic resonance (MR) system. Xenon 129 was hyperpolarized by the spin-exchange with Rubidium pumped first by Ti:Sa laser and also by extended cavity laser system based on a high-power laser diode optimized for maximum efficiency of the optical pumping process. The application of the arrangement with semiconductor laser system is oriented medicine, especially to continuous production of hyperpolarized Xenon (HpXe) which serves as an contrast media in MR imaging systems.

    Článek prezentuje výsledky produkce a detekce polarizovaného xenonu, získané pomocí 4.7T NMR detekčního systému. Xenon 129 byl polarizován optickou cestou prostřednictvím atomů rubidia, opticky čerpaných Ti:Sa laserem a výkonovým polovodičovým laserem. Hlavní aplikační oblastí je v tomto případě medicína, kdy polarizovaný xenon může sloužit jako kontrastní médium pro NMR tomografii.
    Permanent Link: http://hdl.handle.net/11104/0152878

     
     
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