Institute of Molecular Physics of the Polish Academy of Sciences

Bruker ASCEND spectrometer coupled to a vertical wide-bore (89-mm) magnet operating at 11.74 T (500 MHz for ¹H). The console of the spectrometer equipped with three high power radio-frequency (RF) channels of 1000, 1000, and 500 W is configured for solid-state NMR experiments. The spectrometer is provided with the following accessories:

• 5 mm triple resonance (¹H/X/Y) magic angle spinning (MAS) probe with different X/Y frequency combinations (realized with various RF inserts) including ¹³C, ¹⁵N, ³¹P, ¹¹B, ⁶⁹Ga, or ²H allows to perform high-resolution solid-state NMR experiments in the temperature range from -70 to 80 °C.
• 4 mm double resonance (X/Y) MAS probe covered the frequency range of ¹⁵N - ³¹P allows to perform high-resolution solid-state NMR experiments in the temperature range from -120 to 150 °
• low-temperature wideline probe with four coils (10 mm for ¹⁵N, 5 mm and 10 mm for ²H - ¹³⁹La, and 5 mm for ⁵⁹Co - ⁶⁹Ga) allows to perform static NMR experiments down to 7 K.
• gradient system and diffusion probe with two coils of 5 mm diameter dedicated to ¹H and ²H allow to perform pulse field gradient (PFG) NMR diffusion experiments using maximal gradient strength in z direction of 3000 G/cm.
• additional equipment like high-pressure lines with nitrogen gas or dry air, heat exchangers, nitrogen evaporator, efficient gas refrigerator, dewars, pumps, etc. allow to obtain a broad range of experimental temperature conditions.

Bruker AVANCE spectrometer coupled to a vertical wide-bore (90-mm) magnet operating at 7.046 T (300 MHz for ¹H). Special accessories like a gradient system, microimaging probehead, and the sophisticated imaging package allowed to performed the NMR imaging. The maximal gradient strength in x, y and z direction is 100 G/cm. The probehead for protons has four interchangeable coils of the diameter 5, 10, 15 and 25 mm. For small samples ¹H imaging with 2D resolution of about 10 µm are obtained in our laboratory. The Para Vision software supports a variety of special processing functions including statistical analysis in regions of interest and 3D surface reconstruction. The following imaging methods are performed on our spectrometer:

• Gradient Echo Fast Imaging (GEFI)
• Multislice/Multiecho (MSME), T2 calculations
• Snapshot FLASH Method
• Contrast imaging
• Diffusion imaging (SEDIFFUSION, STEDIFFUSION)
• Constant time/ single point imaging (CTI/SPI)
• Localized spectroscopy (VOSY,VSEL)
• Chemical shift imaging (CSIND)

The system consist of the following units: 1 Tesla wide-bore electromagnet, double circuit magnet/power supply cooling system; 3 NMR probes working in different frequency range; variable temperature controller system for sample temperature control with 0.1 °C precision in the range of - 120 to + 140 °C; local magnetic field compensation system for low Field Relaxometry and Personal NMR Console with Software package: AcqNMR32.

The compact model of SPINMASTER FFC2000 with the electromagnet. The switching time between the polarization, relaxation and detection magnetic field can be 1 ms.