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arXiv · 0907.5348

A polarized positron source for CEBAF

J. Dumas·J. Grames·E. Voutier
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Abstract

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.

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J. Dumas, J. Grames, E. Voutier. 2009-07-30. A polarized positron source for CEBAF. https://doi.org/10.1063/1.3232018

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