Ceillier, MorganCala, OlivierEl Darai, TheoCousin, Samuel F.Stern, QuentinGuibert, SylvieElliott, Stuart J.Bornet, AurelienVuichoud, BasileMilani, JonasPages, ChristopheEshchenko, DmitryKempf, James G.Jose, CatherineLambert, Simon A.Jannin, Sami2024-03-182024-03-182024-03-182021-12-0110.1016/j.jmro.2021.100017https://infoscience.epfl.ch/handle/20.500.14299/206301WOS:001133448800009Dissolution dynamic nuclear polarization (dDNP) has become a hyperpolarization method of choice for enhancing nuclear magnetic resonance (NMR) signals. Nuclear spins are polarized in solid frozen samples (in a so-called polarizer) that are subsequently dissolved and transferred to an NMR spectrometer for high sensitivity detection. One of the critical challenges of dDNP is that it requires both a fast transfer to limit nuclear spin relaxation losses as well as stability to guarantee high resolution (no bubbles nor turbulences). Here we describe the design, construction and performances of such a transfer and injection system, that features a 5 m/s speed and sub-Hz spectral resolution upon arrival at the detection spot. We demonstrate the use of such a system for inter-magnet distances of up to 10 m.Life Sciences & BiomedicinePhysical SciencesTechnologyNmrHyperpolarizationDdnpDissolutionInstrumentationTransfertext::journal::journal article::research article