Evaluation of a High-Power Target Design for Positron Production at CEBAF
Abstract
A source for polarized positron beams at the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab is being designed. The Polarized Electrons for Polarized Positrons (PEPPo) concept is used to produce polarized ee-pairs from the bremsstrahlung radiation of a longitudinally polarized electron beam interacting within a high- conversion target. The scheme under consideration includes a 4 mm thick tungsten target that absorbs 17 kW deposited by a 1 mA continuous-wave electron beam with an energy of 120 MeV. The concept of a rotating tungsten rim mounted on a water-cooled copper disk was explored. The results of ANSYS thermal and mechanical analyses are discussed together with FLUKA evaluations of the radiation damages.
Keywords
Cite
@article{arxiv.2309.13754,
title = {Evaluation of a High-Power Target Design for Positron Production at CEBAF},
author = {A. Ushakov and S. Covrig and J. Grames and S. Habet and C. Le Galliard and E. Voutier},
journal= {arXiv preprint arXiv:2309.13754},
year = {2023}
}
Comments
14th International Particle Accelerator Conference (IPAC'23)