Speaker
DongCheol Shin
(Pohang Accelerator Laboratory)
Description
PAL-XFEL plans to begin double-bunch operation in 2027, with two electron bunches separated by 25 ns. The existing beam position monitor (BPM) electronics were designed for single-bunch operation, so the two signals overlap and bias the position measurement. To support this mode without modifying the electronics, we developed an external radio-frequency (RF) switch-based bunch selector that routes only the selected bunch to the BPM input. We built a prototype and conducted laboratory and on-site tests. This paper presents the hardware and experimental results.
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Author
DongCheol Shin
(Pohang Accelerator Laboratory)
Co-authors
Gyujin Kim
(Pohang Accelerator Laboratory)
Changbum Kim
(Pohang Accelerator Laboratory)
Haeryong Yang
(Pohang Accelerator Laboratory)
Si-Won Jang
(Pohang Accelerator Laboratory)
Hoon Heo
(Pohang Accelerator Laboratory)
