title: Instrumentation for solid-state dynamic nuclear polarization with magic angle spinning NMR.
abstract: Advances in dynamic nuclear polarization (DNP) instrumentation and methodology have been key factors in the recent growth of solid-state DNP NMR applications. We review the current state of the art of solid-state DNP NMR instrumentation primarily based on available commercial platforms. We start with a general system overview, including options for microwave sources and DNP NMR probes, and then focus on specific developments for DNP at 100K with magic angle spinning (MAS). Gyrotron microwave sources, passive components to transmit microwaves, the DNP MAS probe, a cooling device for low-temperature MAS, and sample preparation procedures including radicals for DNP are considered.
authors.affiliation: Bruker-Biospin, 15 Fortune Drive, Billerica, MA 01730, USA. Electronic address: melanie.rosay@bruker.com.
authors.forename: Melanie
authors.initials: M
authors.lastname: Rosay
authors.affiliation: Communications and Power Industries, 811 Hansen Way, Palo Alto, CA 94304, USA. Electronic address: monica.blank@cpii.com.
authors.forename: Monica
authors.initials: M
authors.lastname: Blank
authors.affiliation: Bruker-Biospin, Silberstreifen 4, 76287 Rheinstetten, Germany. Electronic address: frank.engelke@bruker.com.
authors.forename: Frank
authors.initials: F
authors.lastname: Engelke
keywords: DNP radicals; DNP sample preparation; Dynamic nuclear polarization; Gyrotrons; Instrumentation; NMR DNP probes; Nuclear magnetic resonance