https://scholars.lib.ntu.edu.tw/handle/123456789/325447
標題: | Single-sided mobile NMR with a Halbach magnet | 作者: | Wei-Hao Chang JYH-HORNG CHEN Lian-Pin Hwang |
關鍵字: | Halbach magnet; Mobile NMR; Single-sided NMR | 公開日期: | 十月-2006 | 卷: | 24 | 期: | 8 | 起(迄)頁: | 1095 - 1102 | 來源出版物: | Magnetic Resonance Imaging | 摘要: | A single-sided mobile NMR apparatus with a small Halbach magnet was constructed for the first time. It is lightweight, compact and exhibits good sensitivity. The weight of the device is only 2 kg, and the NMR signal of the pencil eraser block can be detected in one shot using the device. This study describes the characteristics of this instrument, including the profile of static magnetic flux density, B0, the sensitivity in the depth direction and its effectiveness in one-dimensional profiling. Its usefulness in differentiating soft materials and evaluating the extent of damage of a material is demonstrated based on T2 relaxation data. The moisture absorbance also can be observed from the increase of the echo amplitude of the NMR spin echo signal. © 2006 Elsevier Inc. All rights reserved. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-33748747854&doi=10.1016%2fj.mri.2006.04.005&partnerID=40&md5=d12365c95e24901b385b814883e53a7f | ISSN: | 0730725X | DOI: | 10.1016/j.mri.2006.04.005 | SDG/關鍵字: | absorption; article; halbach magnet; magnet; magnetic field; moisture; nuclear magnetic resonance; priority journal; sensitivity and sensibility; signal detection; single sided mobile nuclear magnetic resonance; weight; Equipment Design; Magnetic Resonance Spectroscopy; Magnetics; Signal Processing, Computer-Assisted |
顯示於: | 電機工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。