Table 1 Protocol parameters used in LF-NMR experiments. RT is the inter-experiment time (time between subsequent π-pulses), TE is the echo time, NoE is the number of echoes in the echo train, Min-Max delay is the range of the separation times between π and π/2-pulses in IR sequence from minimum to maximum, τmin-τmax is the range of separation times between π/2 and π-pulses from minimum to maximum in CPMG sequence, NoS is number of scans, steps is a number of time steps (delay and τ for IR and CPMG, respectively) and α is ILT smoothing factor.
From: Chert outcrops differentiation by means of low-field NMR relaxometry
Experiment | TR (ms) | TE (µs) | NoE | Min-Max delay (ms) | τmin-τmax (ms) | NoS | Steps | α |
|---|---|---|---|---|---|---|---|---|
1D-T1 | 5000 | - | - | 0,05-5000 | - | 24 | 30 | 1 |
1D-T2 | 1500 | 60 | 10 000 | - | - | 512 | - | 0,6 |
T1-T2 | 1500 | 60 | 10 000 | 0,05-5000 | 0,1-5000 | 64 | 30 | 1 |
