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On Possibility of Alpha-buckets Detecting at the KIT Storage Ring KARA (Karlsruhe Research Accelerator)


Alexander Ivanovich Papash, Tobias Boltz, Miriam Brosi, Anke-Susanne Mueller, Robert Ruprecht, Patrick Schreiber, Marcel Schuh, Nigel John Smale

Beteiligtes Institut

Institut für Beschleunigerphysik und Technologie (IBPT)
Laboratorium für Applikationen der Synchrotronstrahlung (LAS)
Fakultät für Physik (PHYSIK)


Beiträge rund ums KIT


Computer studies of longitudinal motion have been performed with the objective to estimate the possibility of detection of alpha-buckets at the KIT storage ring KARA (Karlsruhe Research Accelerator). The longitudinal equations of motion and the Hamiltonian were expanded to high order terms of the energy deviation of particles in a beam. Roots of third order equation for three leading terms of momentum compaction factor and free energy independent term were derived in a form suitable for analytical estimations. Averaged quadratic terms of closed orbit distortions caused by misalignment
of magnetic elements in a ring lead to orbit lengthening independent of particle energy deviation. Particle transverse excursions were estimated and are taken into account. Simulations have been bench-marked on existing
experiments at Metrology Light Source (MLS) in Berlin (Germany) and SOLEIL (France). Parameters of three simultaneous beams and alpha buckets at MLS and SOLEIL have been reproduced with high accuracy. A computer model of KARA was used to predict behavior and the dynamics of possible simultaneous beams in the ring.

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Creative Commons Namensnennung 4.0 International

Auflösung 1440 x 1080 Pixel
Seitenverhältnis 4:3
Audiobitrate 129348 bps
Audio Kanäle 2
Audio Codec aac
Audio Abtastrate 48000 Hz
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Farbraum yuv420p
Container mov,mp4,m4a,3gp,3g2,mj2
Medientyp video/mp4
Dauer 304 s
Dateiname DIVA-2021-278_unknown.mp4
Dateigröße 27.507.336 byte
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Videobitrate 586344 bps
Video Codec h264