Experience in Reducing Electron Cloud and Dynamic Pressure Rise in Warm and Cold Regions in Rhic*
نویسندگان
چکیده
The large scale application of non-evaporable getter coating in RHIC has been effective in reducing the electron cloud. Since beams with higher intensity and smaller bunch spacing became possible in operation, the emittance growth is of concern. Study results are reported together with experiences of machine improvements: saturated NEG coatings, anti-grazing ridges in warm sections, and the pre-pumping in cryogenic regions.
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