Damadian R, Minkoff L, Goldsmith M
Ciba Found Symp. 1978(67):131-41. doi: 10.1002/9780470720493.ch9.
A technique, field-foxusing nuclear magnetic resonance (n.m.r.) spectroscopy (FONAR), is described for doing n.m.r. scans in large samples. The method utilizes a shaped d.c. magnetic field that confines the n.m.r. signal-producing region of the sample to a small volume called the resonance aperture. The aperture contains the required values of the Ho field to fully bracket the band of the r.f. pulse. The magnet system and r.f. pick-up coil that achieved the first human n.m.r. scan are discussed.
描述了一种用于对大样本进行核磁共振扫描的技术——场聚焦核磁共振（FONAR）光谱法。该方法利用一个成形的直流磁场，将样本中产生核磁共振信号的区域限制在一个称为共振孔径的小体积内。该孔径包含了完全包围射频脉冲频带所需的Ho场值。文中还讨论了实现首次人体核磁共振扫描的磁体系统和射频接收线圈。
