用钮扣电极测量强流直线感应加速器束流位置
Experiment study on four button electrode used to monitor positon of high current electronbeam
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摘要: 介绍了钮扣电极测量强脉冲束流位置的基本原理，以及针对钮扣电极所设计的一套模拟实验标定装置；着重介绍了钮扣电极测量束流位置的实验过程，以及在实验中所遇到的问题和对实验平台所做的改进。实验表明钮扣电极对束流位置的测量精度达到亚mm量级，对于束位置偏心测量的相对误差范围在10％以内。Abstract: The button electrode is one that widely used in high energy accelerators, such as storage ring, and the button electrode has many merit like high accuracy, high resolution, resisting magnetic field, simple machinery, without magnetic core and low cost, etc. It's helpful that the button electrode is used as the beam position monitor in the linear induction accelerator. The experimental facilities have bean designed and set up and it can simulate the beam of linear induction accelerator. The button electrode beam position monitor experiment have been done on the experimental facilities. The result of the experiment prove that the button electrode has an accuracy of 0.5mm，and can reflect the wave of electronbeam accurately.
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