A double rotation probe is available to users at the 800MB or 720 MHz NB systems. Its 4 mm inner rotor spins inside the slower 9 mm outer rotor with 6 kHz and 1.5 kHz maximum speeds, respectively.
The following spectrometers are available for this technique:
- 800 MHz 63 mm NMR Magnet (Tallahassee)
- 720 MHz High Resolution 52 mm NMR Magnet (Tallahassee)
The following probes are available for this technique:
- 720 MHz Double-Rotation MAS probe (NICBP, Estonia)