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    Vacuum Science & Technology Friday Sessions
       Session VST-FrM

Paper VST-FrM4
The SNS Accumulator Ring Vacuum Systems@footnote *@

Friday, November 2, 2001, 9:20 am, Room 132

Session: Accelerators Technology, Fusion Machines & Gravitational Wave Detectors
Presenter: H.C. Hseuh, Brookhaven National Laboratory
Authors: P. He, Brookhaven National Laboratory
H.C. Hseuh, Brookhaven National Laboratory
M. Mapes, Brookhaven National Laboratory
L. Smart, Brookhaven National Laboratory
R. Todd, Brookhaven National Laboratory
D. Weiss, Brookhaven National Laboratory
Correspondent: Click to Email

Brookhaven is undertaking the design, construction and commissioning of the accumulator ring and the transport lines for the 1-GeV Spallation Neutron Source. To limit the residual gas ionization by the proton beam, the operating pressure of the ring vacuum system is 10@super -9@ Torr. The inner surface of the accumulator ring vacuum chambers will be coated with titanium nitride to minimize the secondary electron yields. The vacuum requirements and the layout of the vacuum systems will be discussed. The design of the vacuum chambers, vacuum pumps, and quick disconnect flanges and the development of vacuum instrument and control system will also be presented. @FootnoteText@ @footnote *@Work performed under the auspices of the U.S. Department of Energy.