摘要: Polarized electron sources for high energy accelerators took a significant step forward with the introduction of new laser-driven photocathode source SLC in 1992. With an beam polarization >80% and /spl sim/99% uptime during continuous operation, this is key factor success current high-energy physics program. The performance used to illustrate both capabilities limitations solid-state sources. requirements future colliders are similar that addition most cases multiple-bunch operation. A design next generation accelerator can improve operational characteristics at least minimize some inherent present presented. Finally, possibilities producing highly polarized beams high-duty-factor discussed.
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