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

Beam emittance growth caused by longitudinal mismatch in the CSNS linac

THPR11
23 May 2024, 16:00
2h
Rock 'n Roll (MCC Exhibit Hall A)

Rock 'n Roll

MCC Exhibit Hall A

Poster Presentation MC4.A08 Linear Accelerators Thursday Poster Session

Speaker

Jun Peng (Institute of High Energy Physics)

Description

The beam emittance growth at the end of the CSNS linac was measured to be larger than the simulation,though transverse matching was performed. We find that the longitudinal mismatch is responsible for the emittance growth because of the lack of longitudinal diagnostics. A matching technique based on the emittance measurement at the end of the linac was performed on the CSNS linac. Modifying the quadrupole gradients and RF fields of two bunchers in the MEBT improves the matching, and the beam loss along the linac is also reduced.

Region represented Asia
Paper preparation format Word

Primary author

Jun Peng (Institute of High Energy Physics)

Co-authors

Ming-Yang Huang (Institute of High Energy Physics) Yanliang Han (Institute of High Energy Physics) Zhiping Li (Dongguan Neutron Science Center)

Presentation materials

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