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Commissioning and Operation at β* = 1000m in the LHC

Abstract : We have developed a special optics with a β* of 1000 m for two interaction regions (IR1 and IR5) in the LHC, to produce very low divergence beams required for elastic proton-proton scattering. We describe the design, commissioning and operation of this optics in the LHC. The β* of 1000 m was reached by de-squeezing the beams using 17 intermediate steps beyond the β* of 90 m, which had been the previous highest β* value reached in the LHC. The optics was measured and the beta beating globally corrected to a level of 10 per cent.
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Submitted on : Monday, July 29, 2013 - 4:46:13 PM
Last modification on : Friday, July 30, 2021 - 4:01:05 AM
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  • HAL Id : in2p3-00823183, version 1




Hans Burkhardt, T. Persson, R. Tomas, J. Wenninger, S. Cavalier. Commissioning and Operation at β* = 1000m in the LHC. IPAC 13 - 4th International Particle Accelerator Conference, May 2013, Shanghai, China. pp.1982-1984. ⟨in2p3-00823183⟩



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