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| TUP05 |
Beam Dynamics for a new 160 MeV H- Linac at CERN (LINAC4)
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297 |
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- F. Gerigk
CCLRC/RAL/ASTeC, Chilton, Didcot, Oxon
- E. Benedico Mora, A.M. Lombardi, E.Zh. Sargsyan, M. Vretenar
CERN, Geneva
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LINAC4 is a normal conducting H- linac proposed at CERN to provide a higher proton flux to the CERN accelerator chain. It should replace the existing LINAC2 as injector for the PS booster. The same machine can also operate in the future as the front end of the SPL, a 2.2 GeV superconducting linac with 1.8 mA average current. At present the test set-up for LINAC4 consists of a Radio Frequency Quadrupole (RFQ), a chopper line, a Drift Tube Linac (DTL), and Cell Coupled DTL (CCDTL) operating at 352.2 MHz and finally a Side Coupled Linac (SCL) at 702.2 MHz. This paper discusses the overall beam dynamics concept, presents the optics for the different sections of the machine and compares end-to-end simulations realised with two tracking codes (PATH and IMPACT). Estimates of beam loss due to various error sources are presented and the challenging features in the current design are highlighted.
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