Narrow Bore H/X or H/X/Y MAS  Probes up to 1300 MHz

 S/N, RF Field Strength, and Extended VT

Low E ¹H Coil for High Fields

High-Q Inner Solenoid for X and Y

Highest S/N (500 MHz, H/X tuning)

4 mm – 205:1 on 50 mg of glycine, ¹³C .  ¹H with 97.4 W  and ¹³C  with 93.1 W

3 mm – 103:1 on 18 mg of Glycine, ¹³C.  ¹H with 97.5 W  and ¹³C  with 53 W .
3 mm – 258:1 on 18 mg of HMB, ¹³C.

Highest rf field strengths and efficiency

1.3-µs π/2 pulse with only 640 W for ¹³C.
3 mm DI-3 at 500 MHz, H/X tuning.

Extremely robust and easy to use.

3 year limited warranty.

Fast sample spinning in high-sensitivity Si₃N₄ rotors

28 kHz in the DI-3
18 kHz in the DI-4
(and more spinners – see below)

H-F/X/Y broad-band tuning with maximum performance.

Tuning options from ¹⁰⁹Ag to ³¹P. High-power, long-acquisition ¹H decoupling (even at 950 MHz). 100 ms of 70 kHz ¹H dec. on the DI-4 at 500 MHz with 250 W.

Wide Temperature Ranges Options:

-80°C to +120°C for Standard NB VT Range
-160°C to +150°C for XVT (extended NB VT)

Lowest thermal gradients.

<3°C under combined fast MAS, high decoupling, and XVT.

Lowest background signals.

Minimal ¹³C, ¹H, ¹⁹F,²⁷Al, ²⁹Si, ¹¹B, ¹⁵N, ²³Na, ²H, ¹⁷O, … Si₃N₄ and non-magnetic alloy construction.

Exceptional ¹H B₁ homogeneity over full sample.

Best axial and Q stability for minimal artifacts in 2D spectra (patented coil and spinner technology).

Minimum E fields for negligible RF sample heating.

Si₃N₄ rotors, for best S/N and longest lifetime.

Order of magnitude lower decoupler heating compared to solenoid only

Compatible with Agilent, Bruker, and JEOL (and other earlier systems)

Superior spinning speed stability – under 1 Hz.

Clean optical sensing for pulse-rotation synchronization.

Spectra

3 mm H/X @ 500 MHz, 2D MQ-MAS spectrum of the 5/2 27Altransition of Kyanite MQ-MASspectrum of Kyanite in the DI-3 BMAX probe. 180 kHz 27Al field strength.Spin rate is 22 kHz. The probe had a “Bmax” coil with an inner X solenoid and an outer low E  1H coil. Spectra:  Mike Frey, JEOL