sci.NMR-spin-lattice-relaxation-T1 Calculator
Calculates ¹H spin-lattice relaxation recovery: M_z(t) = M₀(1 − 2exp(−t/T1)) from inversion-recovery experiment data. T1 is 0.5–3 s for tissue in MRI — short T1 (fat, contrast agents) appears bright on T1-weighted images; T1-weighted sequences highlight anatomy.
Inputs
- M0
- Reference formula or conversion factor shown for context.
- Mz Init
- Reference formula or conversion factor shown for context.
- T1 Ms
- Duration of the process. Make sure units match the rate inputs (seconds, minutes, or hours).
- T Ms
- Duration of the process. Make sure units match the rate inputs (seconds, minutes, or hours).
Results
- M_z(t) (normalised)
- Sample size or count used in the calculation.
- recovery fraction M_z/M₀
- Sample size or count used in the calculation.
- null point t_null = T₁·ln2 (ms)
- Sample size or count used in the calculation.
- M_z(t) = M₀ + (M_z(0)−M₀)·e^−t/T₁
- Reference formula or conversion factor shown for context.
- tissue T₁ at 1.5T
- The value at the specified point or condition.
- inversion recovery IR sequence
- Sample size or count used in the calculation.
initial lattice fraction relaxation recovery