论文信息 - VACUUM PRESSURE RISE WITH INTENSE ION BEAMS IN RHIC.

VACUUM PRESSURE RISE WITH INTENSE ION BEAMS IN RHIC.

When RHIC is filled with bunches of intense ion beams a pressure rise is observed. The pressure rise exceeds the acceptable limit for operation with the design intensities. Observations of events leading to a pressure rise are summarized. Relevant parameters include ion species, charge per bunch, bunch spacing, and the location in the ring. Effects that contribute to a pressure rise are discussed, including beam gas ionization and ion desorption, loss-induced gas desorption, and electron desorption from electron clouds.

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