A betatron tune measurement system based on bunch-by-bunch transverse feedback at the Duke storage ring

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XU Wei, LI Jing-Yi and HE Duo-Hui. A betatron tune measurement system based on bunch-by-bunch transverse feedback at the Duke storage ring[J]. Chinese Physics C, 2013, 37(7): 077006. doi: 10.1088/1674-1137/37/7/077006
XU Wei, LI Jing-Yi and HE Duo-Hui. A betatron tune measurement system based on bunch-by-bunch transverse feedback at the Duke storage ring[J]. Chinese Physics C, 2013, 37(7): 077006.  doi: 10.1088/1674-1137/37/7/077006 shu
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Received: 2012-08-09
Revised: 1900-01-01
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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A betatron tune measurement system based on bunch-by-bunch transverse feedback at the Duke storage ring

    Corresponding author: XU Wei,

Abstract: To combat electron beam instabilities, a digital bunch-by-bunch transverse feedback (TFB) system has been developed for the Duke storage ring. While it is capable of suppressing transverse beam instabilities for multibunch operation, the TFB system has not been needed for typical operation of the Duke storage ring. To explore the great potential of this system, we have developed beam diagnostic techniques using the TFB, in particular, the TFB based tune measurement techniques. The tune measurement technique allows us to conduct fast chromaticity measurements, compared with the existing chromaticity measurement system using a network analyzer. This new tune measurement system also enables us to measure the bunch tune for multibunch operation of the Duke storage ring. With the TFB based tune measurement system, we have studied the tune stability of the electron beam in the Duke storage ring. This tune system has also been used to calibrate the tune knob for the Duke storage ring.

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