Beam orbit stability at Taiwan Light Source

Hsu, K.T.; Kuo, C.C.; Kuo, Chunghui; Chang, H. P.; Wang, C.; Tsai, Hung-Jen; Chen, J.R.; Lin, K.K.; Sah, R.

doi:10.1109/pac.1999.792707

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The Possible Mechanical Factor Related To Beam Motion1

Introduction1

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“…A thermal induced distortion of girder in 2-3 µm will be induced when the air temperature variation in 0.5 °C by the constraint of girder at both ends. B. Quadrupole magnet: It is well known that the cooling water temperature of magnet will induce the beam motion [3]. The detail mechanism seems not clear.…”

Section: The Possible Mechanical Factor Related To Beam Motionmentioning

confidence: 99%

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Mechanical induced beam motion in SRRC storage ring

Wang

Kuan²,

Chen³

PACS2001. Proceedings of the 2001 Particle Accelerator Conference (Cat. No.01CH37268)

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It had been observed that the mechanical stability of some magnets had influences on the closed orbit in the storage ring. In this paper, a mechanical shaker in low vibration level was applied on the quadrupole magnet. The perturbation of the closed orbit was measured. The thermal induced distortion of magnet supporting structure was discussed. The motions of BPM and quadrupole magnet were measured. Finally some examples of mechanical induced beam motion were included.

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Section: The Possible Mechanical Factor Related To Beam Motionmentioning

confidence: 99%

“…Besides the ripple of magnet power supply, many mechanical related beam motions have been mentioned in other synchrotron facility. For example, the electron beam position monitor (BPM) moved by the vacuum chamber expansion [1], the thermal induced beam motion at ALS and SRRC [2][3][4][5], and the girder movement study at ESRF [6].…”

Section: Introductionmentioning

confidence: 99%