Speaker
Description
Beam Position Monitors are the essential diagnostics tools in any accelerator facility. They enable precise beam orbit measurements with nanometer-level resolution which are crucial for the operation of modern linac-based Free Electron Lasers and future linear colliders. In this work we present the development and implementation of a pulsed RF burst source synchronized with accelerator timing for BPM calibration. This source was installed and characterized at the ATF2 facility in KEK, Japan. The system injects tailored RF pulses into the BPM cavity via one of the two output ports present for each axis. With the capability to adjust frequency and pulse width, to emulate beam pulses, the system demonstrated nearly complete cancellation of beam-generated signals when the injected RF pulse overlapped with the beam pulse. This source has the potential for in-situ BPM calibration without relying on motion systems or "dog-leg" orbit bumps. Beyond calibration, it provides a method to mitigate static signal contributions caused by cavity misalignments and shows potential for compensating wakefield effects, offering a versatile tool for improving beam diagnostics and accelerator performance.
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