IPAC'23 - 14th International Particle Accelerator Conference

Degrader beamline design at the CEBAF injector for machine acceptance studies

MOPM081

8 May 2023, 16:30

2h

Sala Mosaici 2

Poster Presentation MC2.T12: Beam Injection/Extraction and Transport Monday Poster Session

Speaker

Amy Sy (Thomas Jefferson National Accelerator Facility)

Description

A degrader device is being built at the CEBAF injector to degrade the electron beam phase space for machine acceptance studies. The electron beam is degraded through multiple scattering in a thin target before further transport in the injector beamline for injection into CEBAF. The degraded electron beam will approximate phase space distributions expected from a bremsstrahlung-based polarized positron source as in the PEPPo method. The effort is in broader support of the Ce+BAF positron capability that is currently under study. Two options for the degrader device are considered, and simulation results are presented.

Funding Agency

Authored by Jefferson Science Associates, LLC under U.S. DOE Contract No. DE-AC05-06OR23177. The research described in this paper was conducted under the LDRD Program at Jefferson Lab for the U.S. DOE