Development of rotating magnetic field system for the β-NMR method
Development of rotating magnetic field system for the β-NMR method
复制标题
β-NMR 法旋转磁场系统的开发
DOI：
10.1007/s10751-012-0721-5
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发表时间：
2013
影响因子：
--
通讯作者：
Y. Aoki
中科院分区：
文献类型：
--
作者：
D. Nagae;T. Niwa;Y. Ishibashi;Y. Abe;S. Fukuoka;R. Nishikiori;S. Okada;Y. Saito;N. Inaba;A. Ozawa;Y. Aoki
研制了一套旋转磁场系统，用β射线探测核磁共振（β-NMR）方法测定了磁（μ）矩和四极矩（Q）的符号。旋转磁场是使用两个交叉的亥姆霍兹线圈在直角。两个线圈的交流电流的相位角偏移90°。因此，产生的磁场是圆极化的。通过调整相位角差，产生右旋或左旋圆极化磁场。生产的右或左旋转磁场，包括一个线性分量，确认使用拾波线圈。
A rotating magnetic field system has been developed to determine the sign of magnetic (μ) and quadrupole (Q) moments by means of theβ-ray-detected nuclear magnetic resonance (β-NMR) method. The rotating magnetic field is obtained using two crossed Helmholtz-like coils at right angles. The phase angles of the alternating currents for the two coils are shifted by 90°. Thus the resulting magnetic field is circularly polarized. By the adjustment of the phase-angle difference, a right- or left-circularly polarized magnetic field is produced. Productions of right- or left-rotating magnetic fields including a linear component were confirmed using pickup-coils.