Smallest vertical beam sizes achieved in high-energy accelerators
Rogelio Tomas Garcia, Yukiyoshi Ohnishi, Frank Zimmermann

TL;DR
This paper reviews experimental results from various high-energy accelerators that have achieved very small vertical beam sizes, relevant for future collider designs like FCC-ee.
Contribution
It compiles and analyzes existing experimental data on vertical beam sizes from multiple high-energy accelerators, providing insights for future collider development.
Findings
Vertical beam sizes of 30-50 nm achieved in existing accelerators
Comparison of beam size performance across projects
Implications for FCC-ee design and performance
Abstract
FCC-ee aims at colliding electrons and positrons with vertical rms beam sizes between 30 and 50 nm with beam energies extending from about 40 GeV to 182.5 GeV. In this report, we collect experimental results of different high energy accelerator projects with comparable design vertical beam sizes.
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Taxonomy
TopicsParticle Accelerators and Free-Electron Lasers · Particle accelerators and beam dynamics · Pulsed Power Technology Applications
