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Paper   IPM / Particles And Accelerator / 13754
School of Particles and Accelerator
  Title:   LINAC4 Transverse and Longitudinal Emittance Reconstruction In The Presence of Space Charge
1.  J.B Lallemen
2.  G Bellodi
3.  V.A Dimov
4.  A.M Lombardi
5.  Masoomeh Yarmohammadi Satr
  Status:   In Proceedings
  Proceeding: Proceedings of LINAC2014, Geneva, Switzerland
  Year:  2014
  Supported by:  IPM
Linac4 is a pulsed, normal- conducting 160 MeV H- linear accelerator presently under construction at CERN. It will replace the present 50 MeV Linac2 as inject or of the proton accelerator complex as part of a project to increase the LHC luminosity. The 3 MeV front end, composed of a 45 keV ion source, a Low Energy Beam transport (LEBT), a 352 MHz Radio Frequency Quadrupole (RFQ) at 3 MeV and Medium Energy Beam Transport (MEBT) housing a beam chopper, and the first Drift Tube Linac (DTL) tank at 12 MeV have been commissioned during the first half of 2014. The transverse and longitudinal emittance reconstruction technique in the presence of space charge, which will beused for the next commissioning stages and permanently during the Linac operation, was successfully tested and validated. The reconstruction method and the results obtained at 3 and 12 MeV are presented in this paper.

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