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Different Operation Regimes at the KIT Storage Ring KARA (Karlsruhe Research Accelerator)

Papash, Alexander Ivanovich; Brosi, Miriam; Huttel, Erhard; Mochihashi, Akira; Müller, Anke-Susanne ORCID iD icon; Ruprecht, Robert; Schreiber, Patrick ORCID iD icon; Schuh, Marcel ORCID iD icon; Smale, Nigel John


The KIT storage ring KARA operates in a wide energy range from 0.5 to 2.5 GeV. Different operation modes have been implemented at KARA, so far, the double-bend achromat (DBA) lattice with non-dispersive straight sections, the theoretical minimum emittance (TME) lattice with distributed dispersion, different versions of low-compaction factor optics with highly stretched dispersion function. Short bunches of a few ps pulse width are available at KARA. Low-alpha optics has been simulated, tested and implemented in a wide operational range of the storage ring and is now routinely used at 1.3 GeV for studies of beam bursting effects caused by coherent synchrotron radiation in the THz frequency range. Different non-linear effects, in particular residual high-order components of the magnetic field, generated in high-field superconducting wigglers have been studied and cured. Based on good agreement between computer simulations and experiments, a new operation mode at high vertical tune was implemented. The beam performance during user operation as well as at low-alpha regimes has been improved. A specific optic with negative compaction factor was simulated, tested and is in operation.

Verlagsausgabe §
DOI: 10.5445/IR/1000138571
Veröffentlicht am 05.10.2021
DOI: 10.18429/JACoW-IPAC2021-MOPAB036
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Beschleunigerphysik und Technologie (IBPT)
Laboratorium für Applikationen der Synchrotronstrahlung (LAS)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2021
Sprache Englisch
Identifikator ISBN: 978-3-95450-214-1
KITopen-ID: 1000138571
HGF-Programm 54.11.11 (POF IV, LK 01) Accelerator Operation, Research and Development
Erschienen in 12th International Particle Accelerator Conference : virtual edition, May 24th-28th, 2021, Brazil : proceedings volume / IPAC2021. Ed.: R. Picoreti
Veranstaltung 12th International Particle Accelerator Conference (IPAC 2021), Online, 24.05.2021 – 28.05.2021
Verlag JACoW Publishing
Seiten 163-166
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