CERN Accelerating science

Article
Title	Interaction Region Optics for the Non-Interacting LHC Proton Beam at the LHeC
Author(s)	Thompson, L (U. Manchester (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Appleby, R B (U. Manchester (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Bruning, OS (CERN) ; Holzer, BJ (CERN) ; Klein, M (CERN ; U. Liverpool (main)) ; Kostka, P (DESY)
Publication	2012
Number of pages	3
In:	Conf. Proc. C1205201 (2012) pp.TUPPC038
In:	3rd International Particle Accelerator Conference, New Orleans, LA, USA, 20 - 25 May 2012, pp.1245-1247
Subject category	Accelerators and Storage Rings
Accelerator/Facility, Experiment	CERN LHeC
Abstract	The Large Hadron Electron Collider project is a proposal to study e-p and e-A interactions at the LHC. Two electron accelerator designs are being studied; a linac and a synchrotron. In the synchrotron option, a 60GeV electron beam is collided with one of the LHC proton beams to provide high luminosity TeV-scale interactions. The interaction region for this scheme is complex and introduces a series of challenges due to the integration of the two machines. One of these is the optics of the second noninteracting proton beam. The second proton beam must not interfere with the LHeC experiment, but simultaneous running of the remaining LHC experiments requires that this beam must still circulate relatively undisturbed. This paper discusses methods to solve these challenges for the electron synchrotron design.