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Article: Interconnecting L/C components for decoupling and its application to low-field open MRI array

TitleInterconnecting L/C components for decoupling and its application to low-field open MRI array
Authors
Issue Date2007
PublisherJohn Wiley & Sons, Inc.. The Journal's web site is located at http://www.interscience.wiley.com/jpages/1043-7347:1/
Citation
Concepts in Magnetic Resonance. Part B: Magnetic Resonance Engineering, 2007, v. 31B n. 2, p. 116-126 How to Cite?
AbstractInterconnecting L/C components are often applied to decouple the array elements for parallel imaging. Although it has been recognized that interconnecting capacitors and inductors can both be employed for decoupling, quantitative study of this decoupling technique has not yet been presented. In this study, a theoretical analysis for the interconnecting L/C decoupling circuit is provided. The analysis reveals that the required decoupling capacitance decreases with the resonant frequency, whereas the decoupling inductance is independent of the frequency. The inductive decoupling scheme is applied in the design of a four-channel knee coil for 0.5 T open MRI with vertical magnetic field. Experimental results show that good isolations (−19 dB ∼ −45 dB) between coil elements can be achieved and only 5% ∼ 11% degeneration of Q is caused by this decoupling method.
Persistent Identifierhttp://hdl.handle.net/10722/74054
ISSN
2015 Impact Factor: 0.762
2015 SCImago Journal Rankings: 0.278

 

DC FieldValueLanguage
dc.contributor.authorWu, Ben_HK
dc.contributor.authorQu, Pen_HK
dc.contributor.authorWang, Cen_HK
dc.contributor.authorYuan, Jen_HK
dc.contributor.authorShen, GGen_HK
dc.date.accessioned2010-09-06T06:57:21Z-
dc.date.available2010-09-06T06:57:21Z-
dc.date.issued2007en_HK
dc.identifier.citationConcepts in Magnetic Resonance. Part B: Magnetic Resonance Engineering, 2007, v. 31B n. 2, p. 116-126en_HK
dc.identifier.issn1552-5031en_HK
dc.identifier.urihttp://hdl.handle.net/10722/74054-
dc.description.abstractInterconnecting L/C components are often applied to decouple the array elements for parallel imaging. Although it has been recognized that interconnecting capacitors and inductors can both be employed for decoupling, quantitative study of this decoupling technique has not yet been presented. In this study, a theoretical analysis for the interconnecting L/C decoupling circuit is provided. The analysis reveals that the required decoupling capacitance decreases with the resonant frequency, whereas the decoupling inductance is independent of the frequency. The inductive decoupling scheme is applied in the design of a four-channel knee coil for 0.5 T open MRI with vertical magnetic field. Experimental results show that good isolations (−19 dB ∼ −45 dB) between coil elements can be achieved and only 5% ∼ 11% degeneration of Q is caused by this decoupling method.-
dc.languageengen_HK
dc.publisherJohn Wiley & Sons, Inc.. The Journal's web site is located at http://www.interscience.wiley.com/jpages/1043-7347:1/en_HK
dc.relation.ispartofConcepts in Magnetic Resonance. Part B: Magnetic Resonance Engineeringen_HK
dc.titleInterconnecting L/C components for decoupling and its application to low-field open MRI arrayen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1552-5031&volume=31B Issue 2&spage=116&epage=126&date=2007&atitle=Interconnecting+L/C+Components+for+Decoupling+and+Its+Application+to+the+Low-field+Open+MRI+Arrayen_HK
dc.identifier.emailShen, GG: gxshen@eee.hku.hken_HK
dc.identifier.authorityShen, GG=rp00166en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/cmr.b.20087-
dc.identifier.hkuros132658en_HK

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