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WEPA22 |
Development of Insertion Devices Measurement System at IHEP |
381 |
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- W. Chen, X. Feng, H.H. Lu, C. Shi, Y. Yang, J.C. Zhang
IHEP, Beijing, People's Republic of China
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In the cooperation between IHEP and EXFEL, prototype undulator U48 for EXFEL is developed by IHEP. In order to meet, maintain and verify the ID’s magnetic performance, a magnetic measurement system has been developed. The development status of the system at IHEP is described in this paper. A 6.5 m long measurement bench with hall probe and small coil is used to measure the vertical and horizontal components of the Insertion Device magnetic field. The measurement system includes a precise granite bench to position and move the magnetic sensors, motion control part and data acquisition part. The characteristics and performances of the magnetic measurement system are presented.
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