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Obtaining T1-T2 dis...
Obtaining T1-T2 distribution functions from 1-dimensional T1 and T2 measurements : The pseudo 2-D relaxation model
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- Williamson, Nathan H. (författare)
- University of South Australia, Australia
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- Röding, Magnus (författare)
- RISE,SP – Sveriges Tekniska Forskningsinstitut,University College London, Australia
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- Galvosas, Petrik (författare)
- Victoria University of Wellington, New Zealand
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- Miklavcic, Stanley J. (författare)
- University of South Australia, Australia
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- Nydén, Magnus (författare)
- University College London, Australia
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(creator_code:org_t)
- Elsevier BV, 2016
- 2016
- Engelska.
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Ingår i: Journal of magnetic resonance. - : Elsevier BV. - 1090-7807 .- 1096-0856. ; 269, s. 186-195
- Relaterad länk:
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https://unisa.alma.e...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We present the pseudo 2-D relaxation model (P2DRM), a method to estimate multidimensional probability distributions of material parameters from independent 1-D measurements. We illustrate its use on 1-D T1 and T2 relaxation measurements of saturated rock and evaluate it on both simulated and experimental T1-T2 correlation measurement data sets. Results were in excellent agreement with the actual, known 2-D distribution in the case of the simulated data set. In both the simulated and experimental case, the functional relationships between T1 and T2 were in good agreement with the T1-T2 correlation maps from the 2-D inverse Laplace transform of the full 2-D data sets. When a 1-D CPMG experiment is combined with a rapid T1 measurement, the P2DRM provides a double-shot method for obtaining a T1-T2 relationship, with significantly decreased experimental time in comparison to the full T1-T2 correlation measurement.
Nyckelord
- Heterogeneity
- Inverse Laplace transform
- Inverse-gamma distribution
- Lognormal distribution
- Multidimensional distribution function
- Porous media
- Relaxation correlation
- T1
- T2
- Distribution functions
- Inverse problems
- Inverse transforms
- Laplace transforms
- Porous materials
- Inverse gamma distribution
- Log-normal distribution
- Multidimensional distributions
- Relaxation correlations
- T<sub>1</sub>
- T<sub>2</sub>
- Probability distributions
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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