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CMR 380 J

NW14

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CMR 380 J

Hardware
CMR J is a 380 MHz DNP-NMR spectrometer based on a wide-bore Magnex Scientific magnet (9 T) with a ±1 Tesla superconducting sweep coil. The spectrometer console, designed and constructed by the center, has two fully equiped RF channels and one microwave channel. It has low temperature capability for static (> 25 K) experiments. It is intended for dynamic nuclear polarization solid-state NMR studies. A 250 GHz gyrotron microwave source, constructed by the center, provides CW output powers of up to 25 W.

Console

Two transmitter RF channels

Per channel fully programable frequency modulator with sub-millihertz resolution

Per channel fully programable phase modulator with 0.1 degree resolution

Per channel fully programable amplitude modulator with 0.5% resolution

Four channel pulse programmer with 20 nsec resolution


Double buffered averager

Power amplifiers
(1) Braley 1 kW 380 MHz
(1) ENI 550L 50 W 1.5-400 MHz Magnet
Magnex Scientific 380/9T
Resonance Research 18 channel RT shim set

Probes

4 mm double resonance (HX) static probe with microwave channel, VT (25-300 K)

Software

Open VMS operating system

RNMR data acquisition software

Data may be exported in various formats including ASCII, Bruker, Felix, and Varian

RNMRP data processing software