- 고온초전도 선재와 정합회로를 이용한 RF coil 제작에 대한 기초연구
- ㆍ 저자명
- 김동혁,고락길,강부민,하동우,손명환,문치웅,Kim. D.H.,Ko. R.K.,Kang. B.M.,Ha. D.W.,Sohn. M.H.,Mun. C.W.
- ㆍ 간행물명
- 한국초전도·저온공학회논문지
- ㆍ 권/호정보
- 2012년|14권 1호|pp.44-47 (4 pages)
- ㆍ 발행정보
- 한국초전도저온공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
The substantial improvement of the signal-to-noise ratio (SNR) can be achieved with small-size samples or low-field MRI system by high-temperature superconducting(HTS) RF coil. The typical HTS RF coil made of HTS thin film is expensive and is limited the coil geometry to planar surface coil. In this study, commercial Bi-2223 HTS tapes was used as RF coil for a 0.35T permanent MRI system. It has advantages of both much lower cost and easier fabrication over HTS thin film coil. SNR gain of the image obtained from the HTS RF coil over a conventional Cu RF coil at room temperature was about 2.4-fold and 1.9-fold using the spin echo pulse sequence and gradient echo pulse sequence respectively.