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Optimized annular triode ion pump for experimental areas in the LHC

Abstract : The LHC will be the world next generation accelerator to be operational in 2007 at CERN. The UHV requirements force the installation of ion pumps in the experimental areas of ATLAS. Due to the unacceptable particle background that standards ion pumps may generate, a reduction in the amount of material constitutive of the pump body is required. Hence, an stainless steel 0.8 mm thick body annular triode ion pump has been designed. A pumping speed of ~ 20 l/s at 10-9 mbar is provided by 15 pumping elements. Finite elements analysis and destructive tests have been performed in its design. Final vacuum tests results are shown.
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http://hal.in2p3.fr/in2p3-00025580
Contributor : Claudine Bombar <>
Submitted on : Tuesday, February 7, 2006 - 5:03:20 PM
Last modification on : Wednesday, July 22, 2020 - 9:54:17 AM
Long-term archiving on: : Saturday, April 3, 2010 - 10:15:11 PM

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  • HAL Id : in2p3-00025580, version 1

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M. Busso, A. Chatelain, C. Girard, D. Flakowski, S. Ivaldi, et al.. Optimized annular triode ion pump for experimental areas in the LHC. 8th European Vacuum Conference, Jun 2003, Berlin. ⟨in2p3-00025580⟩

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