2015年4月24日
An X-0 shim coil for precise magic-angle adjustment
JOURNAL OF MAGNETIC RESONANCE
- ,
- ,
- 巻
- 256
- 号
- 開始ページ
- 1
- 終了ページ
- 8
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.jmr.2015.04.007
- 出版者・発行元
- ACADEMIC PRESS INC ELSEVIER SCIENCE
A new method for precise setting of the spinning angle to the magic angle by using a saddle coil is described. The coil, which is referred to as an X-0 shim coil, is wound to produce a uniform static magnetic field B-x perpendicular to the main magnetic field B-0. The magnetic field felt by a sample is a vector sum of the main field B-0 and the transverse field B-x produced by the X-0 shim coil. Hence the angle between the spinner axis and the effective magnetic field can be controlled by current I supplied to the X-0 shim coil, leading to precise angle adjustment without backlash accompanied with a mechanical system conventionally used. It is shown that the angle range achieved is +/- 0.05 degrees for I = +/- 5 A at B-0 = 7 T. (C) 2015 Elsevier Inc. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.jmr.2015.04.007
- ISSN : 1090-7807
- eISSN : 1096-0856
- Web of Science ID : WOS:000356840000001