A cryogen-consumption-free system for dynamic nuclear polarization at 9.4 T

A novel system for dissolution dynamic nuclear polarization based on a cost-effective "cryogen-free" magnet that can generate fields up to 9.4 T with a sample space that can reach temperatures below 1.4 K in a continuous and stable manner. Polarization levels up to P(¹H) = 60 ± 5% can be reached with TEMPOL in about 20 min, and P(¹³C) = 50 ± 5% can be achieved using adiabatic cross polarization.