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DOI	10.2172/785292
Title	Beam tube vacuum in a Very Large Hadron Collider; Stage 1 VLHC
Creator/Author	Pivi, M. ; Turner, W.C.
Publication Date	2001 Apr 20
OSTI Identifier	OSTI ID: 785292
Report Number(s)	LBNL--47810
DOE Contract Number	AC03-76SF00098
DOI	10.2172/785292
Other Number(s)	R&D Project: 455101; TRN: AH200131%%256
Resource Type	Technical Report
Resource Relation	Other Information: PBD: 20 Apr 2001
Coverage	Topical
Research Org	Lawrence Berkeley National Lab., CA (US)
Sponsoring Org	USDOE Director, Office of Science. Office of High Energy and Nuclear Physics. Division of High Energy Physics (US)
Subject	43 PARTICLE ACCELERATORS; LINEAR COLLIDERS; DESIGN; GETTERS; HADRONS; METHANE; PUMPING; SCATTERING; BEAM DYNAMICS; VACUUM SYSTEMS
Related Subject	SYNCHROTRON BEAM VACUUM LHC VLHC LARGE HADRON COLLIDER PAC2001 SNOWMASS
Description/Abstract	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.
Country of Publication	United States
Language	English
Format	Size: vp.
Availability	INIS; OSTI as DE00785292 To purchase this media from NTIS, click here
System Entry Date	2007 Apr 16
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