Capacitor-based detection of nuclear magnetization: Nuclear quadrupole resonance of surfaces

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• 作者：Alan Gregorovič ; ^a ; ^{alan.gregorovic@ijs.si} ; Toma&#x17e ; Apih^a ; Ivan Kvasić ; ^a ; Janko Lu&#x17e ; nik^b ; Janez Pirnat^b ; Zvonko Trontelj^b ; Drago Strle^c ; Igor Muš ; evič ; ^a ; ^d
• 关键词：NQR ; Thin samples ; Surfaces ; E-field detection ; RF sensors
• 刊名：Journal of Magnetic Resonance
• 出版年：2011
• 出版时间：March 2011
• 年：2011
• 卷：209
• 期：1
• 页码：79-82
• 全文大小：258 K

文摘

We demonstrate excitation and detection of nuclear magnetization in a nuclear quadrupole resonance (NQR) experiment with a parallel plate capacitor, where the sample is located between the two capacitor plates and not in a coil as usually. While the sensitivity of this capacitor-based detection is found lower compared to an optimal coil-based detection of the same amount of sample, it becomes comparable in the case of very thin samples and even advantageous in the proximity of conducting bodies. This capacitor-based setup may find its application in acquisition of NQR signals from the surface layers on conducting bodies or in a portable tightly integrated nuclear magnetic resonance sensor.