Speaker
Description
The Electron Storage Ring (ESR) dipoles in the planned Electron Ion Collider facility at Brookhaven National Laboratory will be connected in series to meet the beam orbit stability requirements at the interaction point while maintaining achievable ripple limits for the power supplies. These dipoles differ in the aperture size and the shape of the vacuum chamber that runs through them. It is desired that all dipoles have the same response to power supply fluctuations at frequencies below the synchrotron frequency so there is minimal effect on the orbit. To study field attenuation with frequency, ripple tests were conducted on two different dipoles, and the results are presented herein. Methods to equalize the transfer functions of these two magnets are also discussed.
Funding Agency
Work supported by Brookhaven Science Associates, LLC under Contract No. DE-SC0012704 with the US Department of Energy
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