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ファイル | 記述 | サイズ | フォーマット | |
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j.jmr.2014.06.022.pdf | 1.37 MB | Adobe PDF | 見る/開く |
タイトル: | Paramagnetic shimming for wide-range variable-field NMR. |
著者: | Ichijo, Naoki Takeda, Kazuyuki https://orcid.org/0000-0002-6743-0932 (unconfirmed) Takegoshi, K https://orcid.org/0000-0002-4613-2987 (unconfirmed) |
著者名の別形: | 武田, 和行 |
キーワード: | Shimming Passive shimming Paramagnetic shimming Variable-field superconducting magnet NMR elemental analysis |
発行日: | 12-Jul-2014 |
出版者: | Elsevier Inc. |
誌名: | Journal of magnetic resonance |
巻: | 246 |
開始ページ: | 57 |
終了ページ: | 61 |
抄録: | We propose a new passive shimming strategy for variable-field NMR experiments, in which the magnetic field produced by paramagnetic shim pieces placed inside the magnet bore compensates the inhomogeneity of a variable-field magnet for a wide range of magnet currents. Paramagnetic shimming is demonstrated in (7)Li, (87)Rb, and (45)Sc NMR of a liquid solution sample in magnetic fields of 3.4, 4.0, and 5.4T at a fixed carrier frequency of 56.0MHz. Since both the main-field inhomogeneity and the paramagnetic magnetization are proportional to the main-magnet current, the resonance lines are equally narrowed by the improved field homogeneity with an identical configuration of the paramagnetic shim pieces. Paramagnetic shimming presented in this work opens the possibility of high-resolution variable-field NMR experiments. |
著作権等: | © 2014 Elsevier Inc. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/189435 |
DOI(出版社版): | 10.1016/j.jmr.2014.06.022 |
PubMed ID: | 25080372 |
出現コレクション: | 学術雑誌掲載論文等 |
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