A photoelectron linear accelerator for producing a low emittance polarized electric beam. The accelerator includes a tube having an inner wall, the inner tube wall being coated by a getter material. A portable, or demountable, cathode plug is mounted within said tube, the surface of said cathode having a semiconductor material formed thereon.
GOVERNMENTAL RIGHTS IN INVENTION
This invention was made with governmental support under Small Business Innovation Research (SBIR) Contract No. DE-FG03-02ER83401 awarded by the Department of Energy to DULY Research Inc. The government has certain rights in the invention.