Junseong Kim, Woo Seung Lee, Jinsub Kim, Seunghyun Song, Seokho Nam, Haeryong Jeon, Geonwoo Baek, Tae Kuk Ko
언어
영어(ENG)
URL
https://www.earticle.net/Article/A286960
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※ 학술발표대회집, 워크숍 자료집 중 4페이지 이내 논문은 '요약'만 제공되는 경우가 있으니, 구매 전에 간행물명, 페이지 수 확인 부탁 드립니다.
4,000원
원문정보
초록
영어
Recently, production technique and property of the High-Temperature Superconductor (HTS) tape have been improved. Thus, the study on applying an HTS magnet to the high magnetic field application is rapidly increased. A Nuclear Magnetic Resonance (NMR) spectrometer requires high magnitude and homogeneous of central magnetic field. However, the HTS magnet has fabrication errors because shape of HTS is tape and HTS magnet is manufactured by winding HTS tape to the bobbin. The fabrication errors are winding error, bobbin diameter error, spacer thickness error and so on. The winding error occurs when HTS tape is departed from the arranged position on the bobbin. The bobbin diameter and spacer thickness error occur since the diameter of bobbin and spacer are inaccurate. These errors lead magnitude and homogeneity of central magnetic field to be different from its ideal design. The purpose of this paper is to investigate the effect of winding error, bobbin diameter error and spacer thickness error on the central field and field homogeneity of HTS magnet using the virtual NMR signals in MATLAB simulation.
목차
Abstract 1. INTRODUCTION 2. SIMULATION SET-UP 2.1. Specification of virtual HTS magnet 2.2. Specification of errors 3. SEQUENCE AND DESCRIPTION OF SIMULATION 3.1. Modeling of virtual magnet 3.2. Calculation and mapping of the magnetic field 3.3. Generation of FID signal and NMR signal 4. RESULT AND DISCUSSION 4.1. The magnitude of magnetic field 4.2. Result of magnetic field homogeneity 5. CONCLUSION REFERENCES