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A transverse bunch by bunch feedback system for Pohang Light Source upgrade
E-H Lee1, D-T Kim1, J-Y Huang1
1Pohang Accelerator Laboratory, Pohang, Kyungbuk 790-834, South Korea.
The Review of Scientific Instruments
|January 3, 2015
Summary
The Pohang Light Source upgrade (PLS-II) successfully enhanced its synchrotron radiation facility. A new bunch-by-bunch feedback system was implemented to manage instability in the upgraded Pohang Light Source (PLS).
Area of Science:
- Synchrotron Radiation
- Particle Accelerators
- Accelerator Physics
Background:
- The Pohang Light Source (PLS) underwent a major upgrade to PLS-II.
- Key objectives included increasing beam energy, insertion devices, and beam current while reducing emittance.
Purpose of the Study:
- To describe the implementation and performance of a bunch-by-bunch feedback system for the PLS-II.
- To mitigate coupled bunch instability caused by new in-vacuum undulators.
Main Methods:
- Implementation of a bunch-by-bunch feedback system.
- Utilizing the existing Pohang Light Source tunnel and injection system for the upgrade.
Main Results:
- The PLS-II project successfully upgraded the Pohang Light Source.
- The feedback system effectively suppresses coupled bunch instability.
Conclusions:
- The implemented bunch-by-bunch feedback system is crucial for stable operation of the upgraded Pohang Light Source (PLS-II).
- This system enables higher beam currents and improved performance of the new insertion devices.
