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arXiv · 1308.5025

Development of A Modified Quasi-periodic Undulator for HLS

Yufeng Yang·Huihua Lu·Wan chen·Qika Jia·Shuchen Sun·Zhiqiang Li
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Abstract

A modified quasi periodic undulator (QPU) is developed and to be installed at Hefei Light Source (HLS).Magnet dimensions optimization is applied. High harmonics contamination is eliminated from the fundamental emission effectively according to the field tests. The depression ratio of 3rd harmonic is increased by an order of magnitude than the current device with other harmonics well reduced simultaneously. The significance of the modification measure is verified practically. The design, measurement and commissioning of the device is described.

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Yufeng Yang, Huihua Lu, Wan chen, Qika Jia, Shuchen Sun, Zhiqiang Li. 2013-08-23. Development of A Modified Quasi-periodic Undulator for HLS. https://arxiv.org/abs/1308.5025

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