Test of Anti-grazing Ridges at RHIC

Journal Article · Wed Jun 08 00:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1949536· OSTI ID:20722769

Zhang, S Y; Thieberger, P ^[1]

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1. Brookhaven National Laboratory, Upton, NY 11973 (United States)

The RHIC warm section electron cloud is distinguished from normal short bunch electron cloud, observed in many machines, by the much longer bunch spacing and non-uniform distribution in the ring. It is suspected that the beam halo scraping produced positive ions may help secondary electrons to stay longer. Local desorption leading to more residual gas being ionized by the beam may be important too. Anti-grazing ridges are designed to counteract these mechanisms. This article reviews the RHIC warm section electron cloud, the beam scraping effect, and the test of anti-grazing ridges.

• OSTI ID: 20722769
• Journal Information: AIP Conference Proceedings, Vol. 773, Issue 1; Conference: 33. ICFA advanced beam dynamics workshop on high intensity and high brightness hadron beams, Bensheim (Germany), 18-22 Oct 2004; Other Information: DOI: 10.1063/1.1949536; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BEAM BUNCHING
BROOKHAVEN RHIC
CATIONS
COLLIDING BEAMS
DESORPTION
DISTRIBUTION
ELECTRON BEAMS
ELECTRONS
INCIDENCE ANGLE