1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

Synchronous phase measurement and study at the Taiwan Photon Source

THPM071
5 Jun 2025, 15:30
2h
Exhibiton Hall A _Magpie (TWTC)

Exhibiton Hall A _Magpie

TWTC

Poster Presentation MC6.T03 Beam Diagnostics and Instrumentation Thursday Poster Session

Speaker

Chih-Hsien Huang (National Synchrotron Radiation Research Center)

Description

A bunch-by-bunch synchrotron phase detector system has been implemented to investigate the synchronous phase behavior of the storage ring at the Taiwan Photon Source. This detector employs I/Q demodulation to cal-culate the beam phase on a bunch-by-bunch basis. The acquired data is integrated into the accelerator control system, visualized through a graphical user interface, and made available for further analysis. Independent component analysis (ICA) is employed to identify under-lying sources. For a trapezoid-like filling pattern, transi-ent beam loading effects are clearly observed in the flat-top region, whereas significant phase variations occur along the sloped edges of the pattern. During the beam decay period, an in-phase synchrotron phase oscillation at 7 kHz is observed, which originates from the rotation frequency of the radio-frequency transmitter. During injection, three distinct modes are identified through ICA decomposition. Among them, the amplitude of the syn-chronous oscillation mode shows a strong dependence on the injected bucket address.

Region represented Asia
Paper preparation format Word

Author

Chih-Hsien Huang (National Synchrotron Radiation Research Center)

Co-authors

Chunyi Wu (National Synchrotron Radiation Research Center) Jenny Chen (National Synchrotron Radiation Research Center) Jin-Kun Liao (National Synchrotron Radiation Research Center) Kuo-Tung Hsu (National Synchrotron Radiation Research Center) Shu-Hwa Lee (National Synchrotron Radiation Research Center) Yung-Sen Cheng (National Synchrotron Radiation Research Center)

Presentation materials

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