Beam Dynamics for a New 160 Mev H− Linac at Cern (linac4)
نویسندگان
چکیده
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 (PSB). The same machine can also operate in the future as the front end of the SPL, a 2.2GeV superconducting linac with 1.8 mA average current. At present Linac4 consists of a Radio Frequency Quadrupole (RFQ), a chopper line, a Drift Tube Linac (DTL), and Cell Coupled DTL (CCDTL) all operating at 352.2MHz and finally a Side Coupled Linac (SCL) at 704.4 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). The influence of phase/energy errors is discussed and the challenging features in the current design are highlighted. Contribution to the conference LINAC 04, Lübeck, Germany Work supported by the European Community-Research Infrastructure Activity under the FP6 “Structuring the European Research Area” programme (CARE, contract number RII3-CT2003-506395). BEAM DYNAMICS FOR A NEW 160 MEV H− LINAC AT CERN (LINAC4) F. Gerigk, RAL, Chilton, UK E. Benedico Mora, A. M. Lombardi, E. Sargsyan, M. Vretenar, CERN, Geneva, Switzerland
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Linac4 is the near future 160 MeV H- linear accelerator of the CERN presently under construction. It will replace the present Linac2 as injector of the proton accelerator complex in CERN. The Linac4 is composed of a 45 keV ion source, a Low Energy Beam Transport (LEBT), a 352.2 MHz Radio Frequency Quadrupole (RFQ), which accelerates the beam to 3 MeV, and a Medium Energy Beam Transport (MEBT), ...
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