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Operating characteristics of HTS power supply for and improving temporal stability of coated conductor magnet in liquid helium
- Authors
- Park, D. K.; Kim, Y. J.; Yang, S. E.; Kwon, N. Y.; Lee, H. G.; Ko, T. K.
- Issue Date
- 8월-2009
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Coated conductor; HTS power supply; Insert coil; Temporal stability
- Citation
- PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, v.469, no.15-20, pp.1804 - 1807
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
- Volume
- 469
- Number
- 15-20
- Start Page
- 1804
- End Page
- 1807
- ISSN
- 0921-4534
- Abstract
- High temperature superconducting (HTS) magnets have been studied for insert coils of high field nuclear magnetic resonance (NMR) magnets but the temporal stability required for NMR is hard to achieve due to low index value and high joint resistance. In this research, the HTS power supply with magnets using coated conductor (CC) was investigated and tested in helium cryogenic system. All joints were conducted by soldering after etching stabilizer of the CC to minimize joint resistance. The pumping rate was determined by current amplitude and timing sequential control of heaters and the electromagnet. Operating characteristics were analyzed to enhance charging efficiency and the feasibility of temporally stable CC magnet during persistent mode was studied. (C) 2009 Elsevier B.V. All rights reserved.
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