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Preprints, Working Papers, ... Year : 2011

Dynamics on the positron capture and accelerating sections of CLIC

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Abstract

The CLIC Pre-Injector Linac for the e+ beam is composed of an Adiabatic Matching Device (AMD) followed by 4 (or 5) accelerating RF structures embedded in a solenoidal magnetic field. The accelerating sections are based on 2 GHz long travelling wave structures. In this note, the positrons capture strategy downstream the AMD is reviewed. The first RF structure can be phased either for full acceleration or for deceleration. In the latter case, the simulations results show that the number of e+ capture at the end of the 200 MeV Pre-Injector Linac is increased. Then the impact of the space charge is presented. Additional techniques are also studied to explore the potentiality of increasing the number of e+ namely an extra RF field at the beginning of the capture section and a higher solenoidal field.
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Dates and versions

in2p3-00651082 , version 1 (12-12-2011)

Identifiers

  • HAL Id : in2p3-00651082 , version 1
  • CERN : 1368465

Cite

F. Poirier, L. Rinolfi, A. Vivoli, O. Dadoun, P. Lepercq, et al.. Dynamics on the positron capture and accelerating sections of CLIC. 2011. ⟨in2p3-00651082⟩

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IN2P3 LAL CNRS
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