| Paper |
Title |
Page |
| MOPP027 |
Placet Based Start-to-end Simulations of the ILC with Intra-train Fast Feedback System
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604 |
| |
- 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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| THPC133 |
Layout and Simulations of the FONT System at ATF2
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3300 |
| |
- J. Resta-López, P. Burrows
JAI, Oxford
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We describe the adaptation of a Feedback On Nano-second Timescales (FONT) system for the final focus test beam line ATF2 at KEK. This system is located in the ATF2 extraction line, and is mainly conceived for cancellation of transverse jitter positions originated in the damping ring and by the extraction kickers. This jitter correction is performed by means of a combination of feed-forward (FF) and fast-feedback (FB) beam stabilisation. We define optimal positions for the kicker and BPM pairs of the FONT FF/FB system, and estimate the required kicker performance and BPM resolutions. Moreover simulation results are presented.
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| THPC114 |
Design and Performance of a Prototype Digital Feedback System for the International Linear Collider Interaction Point
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3245 |
| |
- P. Burrows, B. Constance, H. Dabiri Khah, J. Resta-López
JAI, Oxford
- R. Apsimon, P. Burrows, C. I. Clarke, A. F. Hartin, C. Perry, C. Swinson
OXFORDphysics, Oxford, Oxon
- G. B. Christian
ATOMKI, Debrecen
- A. Kalinin
STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
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We present the design and preliminary results of a prototype beam-based digital feedback system for the Interaction Point of the International Linear Collider. A custom analogue front-end processor, FPGA-based digital signal processing board, and kicker drive amplifier have been designed, built, and tested on the extraction line of the KEK Accelerator Test Facility (ATF). The system was measured to have a base latency of approximately 140 ns, increasing to approximately 148 ns with the inclusion of real-time charge normalisation.
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