IPAC'24 - 15th International Particle Accelerator Conference

The design progress of a high charge, low energy spread polarized pre injector for Electron Ion Collider

MOPC24

20 May 2024, 16:00

2h

Country (MCC Exhibit Hall A)

Poster Presentation MC1.A08 Linear Accelerators Monday Poster Session

Speaker

Erdong Wang (Brookhaven National Laboratory)

Description

The polarized pre-injector for the Electron-Ion Collider is intended to produce four bunches every second, each containing 7 nC, with 85% polarization along the longitudinal axis, for injection into the Rapid Cycling Synchrotron. The pre-injector consists of a polarized electron source, bunching section, longitudinal phase space manipulation, and SLC-Type LINAC. To reduce energy spread and increase bunch length, a compact zig-zag chicane and dechirp cavity rotate the bunch in longitudinal phase space. In this paper, we will discuss the progress of recent pre-injection design and RF frequency selection. Additionally, we will examine the effects of wakefield, as well as coherent and incoherent synchrotron radiation on beam quality.

Funding Agency

The work is supported by Brookhaven Science Associates, LLC under Contract No. DE-SC0012704 with the U.S. Department of Energy.