| Zugriffsnummer | 39473 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Continuous cryogen-free up-concentration of hyperpolarized 129Xe gas |
| Autor(in); Institution |
Kilian, Wolfgang; 8.1, Biomedizinische Magnetresonanz, PTB-Berlin
Mitschang, Lorenz; 8.1, Biomedizinische Magnetresonanz, PTB-Berlin
Korchak, Sergey; 8.1, Biomedizinische Magnetresonanz, PTB-Berlin
Wind, Jan; Helmholtz-Zentrum Geesthacht, Geesthacht, GERMANY
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| Quelle/Jahr | ISMRM 25th annual meeting & exhibition: 22 - 27 April 2017, Honolulu : IN: Proceedings of the Society of Magnetic Resonance in Medicine: 25 (2017), 2153-1 - 2153-6 |
| Availability | [online only] |
| Verlag | Berkeley, Calif.: ISMRM |
| Konferenzangaben | ISMRM 25th Annual Meeting & Exhibition, Honolulu, Hawaii, 22-27, April, 2017, USA |
| Zusammenfassung | A semipermeable membrane was utilized to separate the process gas helium from a continuous gas stream containing hyperpolarized 129Xe. By this the xenon partial pressure was increased by a factor of ten and the gross amount of helium was removed from the gas stream which was fed from the polarizer to a liquid probe within an NMR spectrometer. Using a sample of dissolved cryptophane-A Cage allowed to separate the effects of up-concentration and polarization loss. The increase in xenon partial pressure was still a twofold higher than the polarization loss we have seen and improvements are obvious from the analysis. |
