Chinese Journal of Magnetic Resonance ›› 2006, Vol. 23 ›› Issue (1): 81-87.

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Measurement of T1 Relaxation Time and Its Distribution In Porous Media

  

  1. Department of Modern Physics, Lanzhou University, Lanzhou 730000,China
  • Received:2005-01-24 Revised:2005-09-05 Published:2006-03-05 Online:2006-03-05

Abstract:

The paper reports measurements of T1 relaxation time and its distribution in porous media. Three models: the single-exponential model, the double-exponential model, and the multi-exponential model (τ -distribution curves) were used to fit the experimental data and compared for their performance. The Levenberg-Marquardt algorithm was used to perform nonlinear regression.

Key words: NMR, porous medium, nonlinear regression,  T1 relaxation time

CLC Number: