| Paper |
Title |
Page |
| MOPP027 |
Placet Based Start-to-end Simulations of the ILC with Intra-train Fast Feedback System
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604 |
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- J. Resta-López, P. Burrows, A. F. Hartin
JAI, Oxford
- A. Latina, D. Schulte
CERN, Geneva
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Integrated simulations are important to assess the reliability of the luminosity performance of the future linear colliders. In this paper we present multi-bunch tracking simulation results for the International Linear Collider (ILC) from the start of the LINAC to the interaction point. The tracking along the LINAC and the beam delivery system is done using the code Placet. This code allows us to introduce cavity wakefield effects, element misalignment errors and ground motion. Static beam based alignment of the LINAC are also considered. The luminosity and beam-beam parameters are calculated using the code Guinea-Pig. In the framework of the Feedback On Nano-second Timescales (FONT) project, we describe and simulate an updated fast intra-train feedback system in order to correct for luminosity degradation mainly due to high frequency ground motion.
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| MOPP037 |
Alignment of the CLIC BDS
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628 |
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- A. Latina, D. Schulte, R. Tomas
CERN, Geneva
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Aligning the CLIC Beam Delivery System faces two major challenges, the tight tolerances for the emittance preservation and its strong non-linear beam dynamics. For these reasons conventional beam-based alignment techniques, like dispersion free steering, are only partially successful and need to be followed by optimization algorithms based on other observables, like beam sizes.
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| TUPC005 |
Simulation Study of Laser-wires as a Post-linac Diagnostic for CLIC and ILC
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1047 |
| |
- G. A. Blair, L. Deacon, S. Malton
Royal Holloway, University of London, Surrey
- I. V. Agapov, A. Latina, D. Schulte
CERN, Geneva
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Realistic CLIC and ILC bunch trains are simulated in the linac, including intra-train collective effects, and then analysed via a realistic simulation of a laser-wire system, including effects of laser-wire signal extraction, detection and deconvolution. Implications are drawn for the use of laser-wires as a post-linac machine diagnostic.
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| TUPP094 |
Recent Improvements in the Tracking Code PLACET
|
1750 |
| |
- A. Latina, H. Burkhardt, G. Rumolo, D. Schulte, R. Tomas
CERN, Geneva
- E. Adli
University of Oslo, Oslo
- Y. Renier
LAL, Orsay
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The Tracking Code PLACET has recently undergone several improvements. A redesign of its internal data structures and a new user interface based on the mathematical toolbox Octave have considerably expanded its simulation capabilities. Several new lattice elements, optimization algorithms and physics processes have been added to allow for more complete start-to-end simulations. The usage of the AML language and the Universal Parser Library extened its interfacing capability.
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| WEPP158 |
Simulation of beam Halo in CLIC Collimation Systems
|
2859 |
| |
- G. A. Blair, S. Malton
Royal Holloway, University of London, Surrey
- I. V. Agapov, A. Latina, D. Schulte
CERN, Geneva
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Full simulation of the CLIC and ILC collimation systems are performed to take account of collimator wakefield effects from the core beam on the halo. In addition full simulation of the interaction of the halo with the collimator material is performed to study the effect of multiple scattering and also the production of neutrons in the electromagnetic showers. The effect of beam-gas scattering downstream of the collimators is also included.
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| THPC018 |
Beam Dynamics Issues in the CLIC Long Transfer Line
|
3017 |
| |
- J. B. Jeanneret, E. Adli, A. Latina, G. Rumolo, D. Schulte, R. Tomas
CERN, Geneva
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Both the main beam and the drive beam of the CLIC project must be transported from the central production site to the head of the main linacs over more than twenty kilometres. Over such distances chromatic aberrations are substantial. With long distances and large beam currents, detuning and instabilities associated to ion production and multi-bunch resistive wall effects must also be considered. These effects are quantified and simulated. Based on these results, we propose a baseline design for these two lines.
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| MOPP042 |
RF Kick in the ILC Acceleration Structure
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637 |
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- V. P. Yakovlev, I. G. Gonin, A. Latina, A. Lunin, K. Ranjan, N. Solyak
Fermilab, Batavia, Illinois
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Detailed results of estimations and simulations for the RF kick caused by input and HOM couplers of the ILC acceleration structure are presented. Results of possible beam emittance dilution caused by RF kick are discussed for the main LINAC acceleration structure, and the RF structures of the ILC bunch compressors BC1 and BC2. Methods of the RF kick reduction are discussed.
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