Author:
Davoodi Hossein,Nordin Nurdiana,Munakata Hirokazu,Korvink Jan G.,MacKinnon Neil,Badilita Vlad
Abstract
AbstractThe low frequency plateau in the frequency response of an untuned micro-resonator permits broadband radio-frequency reception, albeit at the expense of optimal signal-to-noise ratio for a particular nucleus. In this contribution we determine useful figures of merit for broadband micro-coils, and thereby explore the parametric design space towards acceptable simultaneous excitation and reception of a microfluidic sample over a wide frequency band ranging from 13C to 1H, i.e., 125–500 MHz in an 11.74 T magnet. The detector achieves 37% of the performance of a comparably sized, tuned and matched resonator, and a linewidth of 17 ppb using standard magnet shims. The use of broadband detectors circumvents numerous difficulties introduced by multi-resonant RF detector circuits, including sample loading effects on matching, channel isolation, and field distortion.
Funder
Deutsche Forschungsgemeinschaft
Helmholtz Research Area Information, Materials Systems Engineering, Topic 5 Materials Information Discovery
Tokyo Metropolitan University for the Promotion of Joint International Research
KIT VIRMAT initiative
European Union
Karlsruher Institut für Technologie (KIT)
Publisher
Springer Science and Business Media LLC
Cited by
7 articles.
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