Abstract—

Two superconducting magnetic systems have been developed for an electron paramagnetic resonance spectrometer to produce a magnetic field with an induction of 7.0 T, a homogeneity of ~10^–6 rel. units in a volume of 1 cm³, and a stability of ~10^–7–10^–8 rel. units/h in the central zone with a diameter as large as 100 mm. A solenoid, a scan coil, and coils for compensating axial and radial magnetic field gradients are components of the superconducting magnetic system. The maximum efficiency (up to 90%) of entrance of the scanning field in the closed solenoid is achieved when the mutual inductance of the solenoid and the scan coil is nearly zero.

中文翻译：

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电子顺磁共振无线电频谱仪的磁性系统

摘要—

已经为电子顺磁共振波谱仪开发了两个超导磁系统，以产生感应强度为7.0 T，均匀度为〜10 ^-6 rel的磁场。单位体积为1 cm ³，稳定性为〜10 ^–7 –10 ^–8 rel。中心区域中的直径为100毫米/小时，最大直径为100毫米。螺线管，扫描线圈以及用于补偿轴向和径向磁场梯度的线圈是超导磁性系统的组成部分。当螺线管和扫描线圈的互感几乎为零时，可以实现闭合磁场中扫描场进入的最大效率（高达90％）。