2022 IEEE 2nd Ukrainian Microwave Week (UkrMW) 2022
DOI: 10.1109/ukrmw58013.2022.10037007
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Condition for Optimal Preamplifier Decoupling in One-turn Single- and Multi-gap Shielded Loop MRI Detectors

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Cited by 4 publications
(3 citation statements)
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“…Since the difference in SNR was below 10%, it could easily be compensated by a closer contact to the ROI in a wearable coil design, where the Rx elements are mounted on an elastic substrate instead of the firm holder as used here. To improve the twisted pair coils’ transmission decoupling, further research into how to optimize port impedance for maximum detuning efficiency may be of interest for future applications, similar to the method used by Wang et al for preamplifier decoupling [ 54 ]. Based on the excellent SNR results, interelement coupling was sufficiently mediated by the heavy loading of the Rx elements for both twisted pair and standard Rx loops.…”
Section: Resultsmentioning
confidence: 99%
“…Since the difference in SNR was below 10%, it could easily be compensated by a closer contact to the ROI in a wearable coil design, where the Rx elements are mounted on an elastic substrate instead of the firm holder as used here. To improve the twisted pair coils’ transmission decoupling, further research into how to optimize port impedance for maximum detuning efficiency may be of interest for future applications, similar to the method used by Wang et al for preamplifier decoupling [ 54 ]. Based on the excellent SNR results, interelement coupling was sufficiently mediated by the heavy loading of the Rx elements for both twisted pair and standard Rx loops.…”
Section: Resultsmentioning
confidence: 99%
“…4). Using the equations for wire loop impedance [5] and assuming the conductivity of copper at 77K is 10 9 /3.5 S/m, the calculated Zcoil at 32.1 MHz is indicated in Fig. 3.…”
Section: Procedures and Resultsmentioning
confidence: 99%
“…We also demonstrate how to use |𝐾𝐾(j𝜔𝜔)| ∝ 𝜔𝜔 to build a 13 C- 23 Na coil of which the current values at the resonant frequencies of 13 C (30.99 MHz) and 23 Na (32.59 MHz) are required equal to ensure identical coil sensitivity profiles [4]. This calibration method has been shown previously to measure preamplifier decoupling accurately [5], [6].…”
Section: Introductionmentioning
confidence: 93%