Beam tube vacuum in a Very Large Hadron Collider; Stage 1 VLHC

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Synchrotron radiation induced photodesorption in particle accelerators may lead to pressure rise and to beam-gas scattering losses, finally affecting the beam lifetime. We discuss the beam tube vacuum in the low field Stage 1 Very Large Hadron Collider VLHC. Since VLHC Stage 1 has a room temperature beam tube, a non-evaporable getter (NEG St101 strip) pumping system located inside a pumping antechamber, supplemented by lumped ion pumps for pumping methane is considered. A possible beam conditioning scenario is presented for reaching design intensity. The most important results are summarized in this paper. More detailed reports of the calculations will be ... continued below

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Pivi, M. & Turner, W.C. April 20, 2001.

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Synchrotron radiation induced photodesorption in particle accelerators may lead to pressure rise and to beam-gas scattering losses, finally affecting the beam lifetime. We discuss the beam tube vacuum in the low field Stage 1 Very Large Hadron Collider VLHC. Since VLHC Stage 1 has a room temperature beam tube, a non-evaporable getter (NEG St101 strip) pumping system located inside a pumping antechamber, supplemented by lumped ion pumps for pumping methane is considered. A possible beam conditioning scenario is presented for reaching design intensity. The most important results are summarized in this paper. More detailed reports of the calculations will be presented at the PAC2001 Conference, Chicago, IL to be held in June 2001, and at the Snowmass Conference, CO, to be held on July 2001.

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INIS; OSTI as DE00785292

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  • Other Information: PBD: 20 Apr 2001

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  • Report No.: LBNL--47810
  • Grant Number: AC03-76SF00098
  • DOI: 10.2172/785292 | External Link
  • Office of Scientific & Technical Information Report Number: 785292
  • Archival Resource Key: ark:/67531/metadc715188

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  • April 20, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • Sept. 1, 2016, 7:10 p.m.

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Pivi, M. & Turner, W.C. Beam tube vacuum in a Very Large Hadron Collider; Stage 1 VLHC, report, April 20, 2001; California. (digital.library.unt.edu/ark:/67531/metadc715188/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.