CERN Accelerating science

Article
Title Resonant spin depolarization at the test facility KARA: overview of recent efforts
Author(s) Blomley, Edmund (KIT, Karlsruhe) ; Müller, Anke-Susanne (KIT, Karlsruhe) ; Härer, B (KIT, Karlsruhe) ; Huttel, Erhard (KIT, Karlsruhe) ; Zimmermann, Frank (CERN) ; Keintzel, Jacqueline (CERN) ; Steinmann, Johannes (KIT, Karlsruhe) ; Gethmann, Julian (KIT, Karlsruhe) ; Ruprecht, Robert (KIT, Karlsruhe)
Publication 2024
Number of pages 4
In: JACoW IPAC 2024 (2024) WEPG51
In: 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEPG51
DOI 10.18429/JACoW-IPAC2024-WEPG51
Subject category Accelerators and Storage Rings
Abstract The Karlsruhe research accelerator KARA offers a setup to measure the beam energy with resonant spin depolarization. The depolarization is excited by the stripline kickers of the bunch-by-bunch feedback system and the resonant frequency is measured via change in Touschek lifetime. Energy measurements with resonant spin depolarization are implemented as a standard routine in the control system and are used regularly to measure both the beam energy and the momentum compaction factor for different energies and optics regimes.Long-time experience with the setup, short polarization time, and variation options of beam energy in combination with much available beam time qualify KARA as a test facility for systematic studies. Such studies are of particular interest for future colliders designed for precision studies like FCC-ee, as resonant spin depolarization is known for its high accuracy. This contribution presents the resonant spin depolarization setup at KARA and selected results of recent measurement campaigns.
Copyright/License CC-BY-4.0

Corresponding record in: Inspire


 ჩანაწერი შექმნილია 2024-10-15, ბოლოს შესწორებულია 2024-10-16


სრული ტექსტი:
სრული ტექსტის ჩამოტვირთვა
PDF