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@ARTICLE{Becker:917058,
author = {Becker, Moritz and Lehmkuhl, Sören and Kesselheim, Stefan
and Korvink, Jan G. and Jouda, Mazin},
title = {{A}cquisitions with random shim values enhance {AI}-driven
{NMR} shimming},
journal = {Journal of magnetic resonance},
volume = {345},
issn = {1090-7807},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2023-00303},
pages = {107323 -},
year = {2022},
abstract = {Shimming is still an unavoidable, time-consuming and
cumbersome burden that precedes NMR experiments, and aims to
achieve a homogeneous magnetic field distribution, which is
required for expressive spectroscopy measurements. This
study presents multiple enhancements to AI-driven shimming.
We achieve fast, quasi-iterative shimming on multiple shims
simultaneously via a temporal history that combines spectra
and past shim actions. Moreover, we enable efficient data
collection by randomized dataset acquisition, allowing
scalability to higher-order shims. Application at a
low-field benchtop magnet reduces the linewidth in 87 of 100
random distortions from 4 Hz to below 1 Hz, within less than
10 NMR acquisitions. Compared to, and combined with,
traditional methods, we significantly enhance both the speed
and performance of shimming algorithms. In particular,
AI-driven shimming needs roughly 1/3 acquisitions, and helps
to avoid local minima in of the cases. Our dataset and code
is publicly available.},
cin = {JSC},
ddc = {530},
cid = {I:(DE-Juel1)JSC-20090406},
pnm = {5112 - Cross-Domain Algorithms, Tools, Methods Labs (ATMLs)
and Research Groups (POF4-511)},
pid = {G:(DE-HGF)POF4-5112},
typ = {PUB:(DE-HGF)16},
pubmed = {36375285},
UT = {WOS:000900743900011},
doi = {10.1016/j.jmr.2022.107323},
url = {https://juser.fz-juelich.de/record/917058},
}