Beam-based measurements of long-range transverse wakefields in the Compact Linear Collider main-linac accelerating structure
| Autor: | Alexej Grudiev, N. Lipkowitz, Erik Adli, Andrea Latina, Walter Wuensch, Daniel Schulte, Giovanni De Michele, Anastasiya Solodko, Hao Zha, Gerald Yocky |
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| Předmět: |
Physics
Nuclear and High Energy Physics Range (particle radiation) Physics and Astronomy (miscellaneous) Compact Linear Collider 010308 nuclear & particles physics business.industry Particle accelerator Surfaces and Interfaces 01 natural sciences Accelerators and Storage Rings Linear particle accelerator law.invention Transverse plane Optics Bunches Nuclear magnetic resonance Orders of magnitude (time) law 0103 physical sciences lcsh:QC770-798 lcsh:Nuclear and particle physics. Atomic energy. Radioactivity 010306 general physics business Beam (structure) |
| Zdroj: | Physical Review Accelerators and Beams, Vol 19, Iss 1, p 011001 (2016) |
| Popis: | The baseline design of CLIC (Compact Linear Collider) uses X-band accelerating structures for its main linacs. In order to maintain beam stability in multibunch operation, long-range transverse wakefields must be suppressed by 2 orders of magnitude between successive bunches, which are separated in time by 0.5 ns. Such strong wakefield suppression is achieved by equipping every accelerating structure cell with four damping waveguides terminated with individual rf loads. A beam-based experiment to directly measure the effectiveness of this long-range transverse wakefield and benchmark simulations was made in the FACET test facility at SLAC using a prototype CLIC accelerating structure. The experiment showed good agreement with the simulations and a strong suppression of the wakefields with an unprecedented minimum resolution of 0.1 V/(pC mm m). |
| Databáze: | OpenAIRE |
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