DESIGNING THE SPREADERS AND SPLITTERS FOR THE FFA@CEBAF ENERGY UPGRADE

Conference · Fri Sep 01 00:00:00 EDT 2023

DOI:https://doi.org/10.18429/JACoW-IPAC2023-MOPM081· OSTI ID:2278666

Sy, A. ^[1]; Hernandez-Garcia, C. ^[1]; Turner, D. ^[1]; Grames, J. ^[1]; Roblin, Y. ^[1]; Valerio-Lizárraga, C. ^[2]; Lizarraga-Rubio, V. ^[3]

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1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
2. Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, México
3. Universidad de Guanajuato, León, Guanajuato, México

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.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 2278666
• Report Number(s): JLAB-ACP-23-3805; DOE/OR/23177-6116
• Country of Publication: United States
• Language: English