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Controlling the vertical mode coupling instability with feedback in the ALS

Technical Report ·
DOI:https://doi.org/10.2172/453534· OSTI ID:453534
The authors present the results of experiments to control the mode coupling instability in the vertical direction using a feedback system. Presently, they can raise the instability threshold from {approximately} 20 mA to 35 mA. The maximum current threshold is reached when the feedback is operated in a resistive mode.
Research Organization:
Lawrence Berkeley National Lab., CA (United States)
Sponsoring Organization:
USDOE Office of Energy Research, Washington, DC (United States)
DOE Contract Number:
AC03-76SF00098; AC03-76SF00515
OSTI ID:
453534
Report Number(s):
LBNL--39727; ON: DE97004239
Country of Publication:
United States
Language:
English

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