Chin. Phys. Lett.  2002, Vol. 19 Issue (9): 1380-1381    DOI:
Original Articles |
High-Tc Superconductor Detection Coils for a Magnetic Resonance System
KANG Lin1;WU Pei-Heng1;PAN Jun1;CAI Wei-Xing1;YANG Sen-Zu1;CAO Chun-Hai2
1Research Institute of Superconductor Electronics, Department of Electronic Science and Engineering, Nanjing University, Nanjing 210093 2Institute of Nanjing Electronics Devices, Nanjing 210016
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KANG Lin, WU Pei-Heng, PAN Jun et al  2002 Chin. Phys. Lett. 19 1380-1381
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Abstract Considering that in a magnetic resonance system, if the detection coil contributes dominantly to the system noise, the performance of the whole system can certainly be improved by switching to a detection coil made of high-temperature superconductor, and using YBa2Cu3O7 thin films on 25 x 25mm2 LaAlO3 substrates, we have prepared two kinds of detection coils, i.e., single-coil and two-coil. Encouragingly, their quality factors are measured to be Q > 2500 for two-coil (at 22.566 MHz and 77 K) and Q > 5500 for single-coil (at 92.3 MHz and 77 K), respectively. Here, we describe the details of the design, fabrication and tests of the coils.
Keywords: 85.25.-j      74.76.Bz     
Published: 01 September 2002
PACS:  85.25.-j (Superconducting devices)  
  74.76.Bz  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2002/V19/I9/01380
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KANG Lin
WU Pei-Heng
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CAI Wei-Xing
YANG Sen-Zu
CAO Chun-Hai
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