A Reformulated Surface Nmr Forward For Multi-Sequence Acquisitions

M. Griffiths; D. Grombacher; M. A. Kass; L. Liu; M. Vang; J. J. Larsen

doi:10.3997/2214-4609.202220109

A Reformulated Surface Nmr Forward For Multi-Sequence Acquisitions

M. Griffiths, D. Grombacher, M. A. Kass, L. Liu, M. Vang, J. J. Larsen

Publikation: Bidrag til bog/antologi/rapport/proceeding › Konferencebidrag i proceedings › Forskning › peer review

Abstract

The use of steady-state sequences is a promising approach to increase acquisitions rates in surface NMR. However, modelling and inverting these sequences, and especially suites of these sequences becomes a computational challenge. Here we consider a reformulation of the standard surface NMR forward model to accommodate multi-sequence acquisitions. We develop an approach that decouples the temporal and spatial aspects of the excitation, which streamlines the modelling for multiple sequences and multiple transmitter current strengths. Benefits of this approach are highly when incorporated within the fastmapping framework, whereby thousands of kernels are computed upfront and fit with polynomials of the relaxation times. Using the new formulation, the time to calculate fastmapping kernels is reduced from ~1hr to < 1 min.

Originalsprog	Engelsk
Titel	28th European Meeting of Environmental and Engineering Geophysics, Held at the Near Surface Geoscience Conference and Exhibition 2022, NSG 2022
Antal sider	5
Forlag	European Association of Geoscientists and Engineers
Publikationsdato	2022
ISBN (Elektronisk)	9789462824256
DOI	https://doi.org/10.3997/2214-4609.202220109
Status	Udgivet - 2022
Begivenhed	28th European Meeting of Environmental and Engineering Geophysics, Held at the Near Surface Geoscience Conference and Exhibition 2022, NSG 2022 - Belgrade, Serbien Varighed: 18 sep. 2022 → 22 sep. 2022

Konference

Konference	28th European Meeting of Environmental and Engineering Geophysics, Held at the Near Surface Geoscience Conference and Exhibition 2022, NSG 2022
Land/Område	Serbien
By	Belgrade
Periode	18/09/2022 → 22/09/2022

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10.3997/2214-4609.202220109

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Citationsformater

Griffiths, M., Grombacher, D., Kass, M. A., Liu, L., Vang, M., & Larsen, J. J. (2022). A Reformulated Surface Nmr Forward For Multi-Sequence Acquisitions. I 28th European Meeting of Environmental and Engineering Geophysics, Held at the Near Surface Geoscience Conference and Exhibition 2022, NSG 2022 European Association of Geoscientists and Engineers. https://doi.org/10.3997/2214-4609.202220109

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title = "A Reformulated Surface Nmr Forward For Multi-Sequence Acquisitions",

abstract = "The use of steady-state sequences is a promising approach to increase acquisitions rates in surface NMR. However, modelling and inverting these sequences, and especially suites of these sequences becomes a computational challenge. Here we consider a reformulation of the standard surface NMR forward model to accommodate multi-sequence acquisitions. We develop an approach that decouples the temporal and spatial aspects of the excitation, which streamlines the modelling for multiple sequences and multiple transmitter current strengths. Benefits of this approach are highly when incorporated within the fastmapping framework, whereby thousands of kernels are computed upfront and fit with polynomials of the relaxation times. Using the new formulation, the time to calculate fastmapping kernels is reduced from ~1hr to < 1 min.",

author = "M. Griffiths and D. Grombacher and Kass, {M. A.} and L. Liu and M. Vang and Larsen, {J. J.}",

note = "Publisher Copyright: {\textcopyright} 2022 NSG. All Rights Reserved.; 28th European Meeting of Environmental and Engineering Geophysics, Held at the Near Surface Geoscience Conference and Exhibition 2022, NSG 2022 ; Conference date: 18-09-2022 Through 22-09-2022",

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doi = "10.3997/2214-4609.202220109",

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Griffiths, M , Grombacher, D , Kass, MA, Liu, L, Vang, M & Larsen, JJ 2022, A Reformulated Surface Nmr Forward For Multi-Sequence Acquisitions. i 28th European Meeting of Environmental and Engineering Geophysics, Held at the Near Surface Geoscience Conference and Exhibition 2022, NSG 2022. European Association of Geoscientists and Engineers, 28th European Meeting of Environmental and Engineering Geophysics, Held at the Near Surface Geoscience Conference and Exhibition 2022, NSG 2022, Belgrade, Serbien, 18/09/2022. https://doi.org/10.3997/2214-4609.202220109

A Reformulated Surface Nmr Forward For Multi-Sequence Acquisitions. / Griffiths, M.; Grombacher, D.; Kass, M. A. et al.
28th European Meeting of Environmental and Engineering Geophysics, Held at the Near Surface Geoscience Conference and Exhibition 2022, NSG 2022. European Association of Geoscientists and Engineers, 2022.

Publikation: Bidrag til bog/antologi/rapport/proceeding › Konferencebidrag i proceedings › Forskning › peer review

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AU - Griffiths, M.

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AU - Vang, M.

AU - Larsen, J. J.

PY - 2022

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N2 - The use of steady-state sequences is a promising approach to increase acquisitions rates in surface NMR. However, modelling and inverting these sequences, and especially suites of these sequences becomes a computational challenge. Here we consider a reformulation of the standard surface NMR forward model to accommodate multi-sequence acquisitions. We develop an approach that decouples the temporal and spatial aspects of the excitation, which streamlines the modelling for multiple sequences and multiple transmitter current strengths. Benefits of this approach are highly when incorporated within the fastmapping framework, whereby thousands of kernels are computed upfront and fit with polynomials of the relaxation times. Using the new formulation, the time to calculate fastmapping kernels is reduced from ~1hr to < 1 min.

AB - The use of steady-state sequences is a promising approach to increase acquisitions rates in surface NMR. However, modelling and inverting these sequences, and especially suites of these sequences becomes a computational challenge. Here we consider a reformulation of the standard surface NMR forward model to accommodate multi-sequence acquisitions. We develop an approach that decouples the temporal and spatial aspects of the excitation, which streamlines the modelling for multiple sequences and multiple transmitter current strengths. Benefits of this approach are highly when incorporated within the fastmapping framework, whereby thousands of kernels are computed upfront and fit with polynomials of the relaxation times. Using the new formulation, the time to calculate fastmapping kernels is reduced from ~1hr to < 1 min.

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A Reformulated Surface Nmr Forward For Multi-Sequence Acquisitions

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