19–24 May 2024
Music City Center
US/Central timezone

BPM feedback for LLRF energy and phase regulation in charge stripping beamlines

THPG32
23 May 2024, 16:00
2h
Bluegrass (MCC Exhibit Hall A)

Bluegrass

MCC Exhibit Hall A

Poster Presentation MC6.T05 Beam Feedback Systems Thursday Poster Session

Speaker

Scott Cogan (Facility for Rare Isotope Beams, Michigan State University)

Description

Charge stripping is inherent for high power ion accelerators such as the FRIB LINAC. However, at high power, strippers require motion to prolong the operational life of the stripping media, or by flowing a liquid Lithium film. The charge stripping process introduces energy losses that vary with the actual Lithium film thickness, which can result in observable beam losses along the tuned beamline at high on-target beam power, above ~100 kW, if not adequately mitigated. BPM phase feedback is used in real-time to compensate for these effects, controlling upstream RF cavities in order to maintain a constant beam energy and phase post-stripper, which significantly reduces beam energy fluctuations.

Funding Agency

Work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0023633, the State of Michigan, and Michigan State University.

Region represented North America
Paper preparation format Word

Primary author

Shen Zhao (Facility for Rare Isotope Beams)

Co-authors

Alexander Plastun (Facility for Rare Isotope Beams, Michigan State University) Douglas McNanney (Facility for Rare Isotope Beams, Michigan State University) Peter Ostroumov (Facility for Rare Isotope Beams, Michigan State University) Qiang Zhao (Michigan State University) Scott Cogan (Facility for Rare Isotope Beams, Michigan State University) Takuji Kanemura (Facility for Rare Isotope Beams, Michigan State University) Tomofumi Maruta (Facility for Rare Isotope Beams, Michigan State University)

Presentation materials

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