A compact polarized positron source for Jefferson Lab is discussed. This scheme relies upon a high polarization (85%), high current (1 mA), low-energy (<100 MeV) electron beam to generate polarized positrons in a conversion target via polarized bremsstrahlung and pair creation. GEANT4 is used to simulate source distributions suitable for a CEBAF-like injector with positron polarization ~60% and nano-Ampere intensity. An experiment to test this scheme is outlined.
@article{arxiv.0907.5348,
title = {A polarized positron source for CEBAF},
author = {J. Dumas and J. Grames and E. Voutier},
journal= {arXiv preprint arXiv:0907.5348},
year = {2009}
}