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NMR Fast Field Cycling is the only method capable of acquiring T1 dispersion curves as a function of mangnetic field strength.
Fast Field Cycling Relaxometry (FFCR) is an NMR technique used to determine the longitudinal relaxation time (T1) over a range of magnetic fields spanning about 6 decades, from about 10e-6 up to about 1 Tesla.
A high magnetic field is applied to pre-polarise the sample in order to boost the signal intensity. The sample is then allowed to relax in second field, set to any desired value (including zero).
The shortest measurable T1 is directly dependent upon the field switching time. Therefore, magnet design is critical to achieve fast switching times, while maintaining high field stability and magnet homogeneity offered by Stelar.
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