In these days, some researches on the HTS insert coil/LTS background coil (hybrid coil) for nuclear magnetic resonance (NMR) system have been conducted. Magnetic field homogeneity is very important in NMR system. Because the direction of the joint part between a stack of double pancake coils (DPCs) can cause magnetic field homogeneity problem, the joint methods between the DPCs are important. YBCO coated conductor tapes are manufactured in various widths.They can be used as an auxiliary superconducting tape at the joint part between the DPCs for enhancing magnetic field homogeneity. The joint characteristics between the DPCs can vary with the conditions of the auxiliary tape such as numbers, widths, and directions. In this work, we conducted joint experiments under various conditions of the auxiliary tape and analysed the joint characteristics. The joint methods in this work are expected to be used to fabricate an insert coil in NMR system.
Bibliographical noteFunding Information:
Manuscript received August 03, 2010; accepted November 07, 2010. Date of publication December 23, 2010; date of current version May 27, 2011. This study was supported by the Korea Science and Engineering Foundation (KOSEF) Grant funded by the Korea government (MEST 2009-0085369). K. S. Chang, H. C. Jo, Y. J. Kim, and T. K. Ko are with the School of Electrical & Electric Engineering, Yonsei University, Seoul 120-749, Korea (e-mail: firstname.lastname@example.org). M. CheolAhn is with the Department of Electrical Engineering, Kunsan National University, Gunsan 573-701, Korea (e-mail: email@example.com). Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TASC.2010.2092734
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering