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本文叙述了苏联帮助我国建设的第一台回旋加速器的磁铁的主要数据、磁场的测量方法和调整步骤与结果。为了使调磁片不致因长期工作后发生移动,调磁片牢固地镶在铝盘上,而铝盘又牢固地固定在真空室上。调整后在r=525毫米处的磁场下降率为2％,在任何半径上方位角分布的一次谐波峰值没有超过3奥。 本文总结了调整磁场的一些经验,解决了测量技术上的一些问题,整理和分析了各种调磁片影响的结果。
This article describes the main data of the magnet of the first cyclotron built by the Soviet Union to assist the construction of our country, the measurement method of the magnetic field and the adjustment steps and results. In order to make the transfer film does not move due to long-term work, tune the film firmly set in the aluminum plate, aluminum plate and firmly fixed in the vacuum chamber. The adjusted rate of descent of the magnetic field at r = 525 mm is 2% and the first harmonic peak in the azimuthal distribution over any radius does not exceed 3Å. This article summarizes some experiences of adjusting the magnetic field, solves some problems in the measurement technique, and organizes and analyzes the results of the influence of all kinds of adjusting magnets.