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

Capture cavities for the CW polarized positron source Ce⁺BAF

MOPC51
20 May 2024, 16:00
2h
Country (MCC Exhibit Hall A)

Country

MCC Exhibit Hall A

Poster Presentation MC1.A08 Linear Accelerators Monday Poster Session

Speaker

Shaoheng Wang (Thomas Jefferson National Accelerator Facility)

Description

The initial design of the capture cavities for a continuous wave (CW) polarized positron beam for the Continuous Electron Beam Accelerator Facility (CEBAF) upgrade at Jefferson Lab is presented. A chain of standing wave multi-cell copper cavities inside a solenoid tunnel are selected to bunch/capture positrons in CW mode. The capture efficiency is studied with varying cavity gradients and phases. The heating load from the incoming particle radiation shower and RF field will limit the achievable gradients, especially the first cavity. The cooling method and results are shown. The beam loading cancellation from positrons and electrons are investigated.

Funding Agency

This work is supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics under contract DE-AC05-06OR23177

Region represented North America
Paper preparation format Word

Primary author

Shaoheng Wang (Thomas Jefferson National Accelerator Facility)

Co-authors

Dr Joseph Grames (Thomas Jefferson National Accelerator Facility) Nabin Raut (Thomas Jefferson National Accelerator Facility) Robert Rimmer (Thomas Jefferson National Accelerator Facility) Yves Roblin (Thomas Jefferson National Accelerator Facility) Andriy Ushakov (Thomas Jefferson National Accelerator Facility) Haipeng Wang (Thomas Jefferson National Accelerator Facility)

Presentation materials

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