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Parallelized Vlasov-Fokker-Planck solver for desktop personal computers

Schönfeldt, Patrik; Brosi, Miriam; Schwarz, Markus; Steinmann, Johannes L.; Müller, Anke-Susanne

The numerical solution of the Vlasov-Fokker-Planck equation is a well established method to simulate the dynamics, including the self-interaction with its own wake field, of an electron bunch in a storage ring. In this paper we present Inovesa, a modularly extensible program that uses opencl to massively parallelize the computation. It allows a standard desktop PC to work with appropriate accuracy and yield reliable results within minutes. We provide numerical stability-studies over a wide parameter range and compare our numerical findings to known results. Simulation results for the case of coherent synchrotron radiation will be compared to measurements that probe the effects of the microbunching instability occurring in the short bunch operation at ANKA. It will be shown that the impedance model based on the shielding effect of two parallel plates can not only describe the instability threshold, but also the presence of multiple regimes that show differences in the emission of coherent synchrotron radiation.

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Verlagsausgabe §
DOI: 10.5445/IR/1000067511
Veröffentlicht am 18.01.2018
DOI: 10.1103/PhysRevAccelBeams.20.030704
Zitationen: 11
Web of Science
Zitationen: 9
Cover der Publikation
Zugehörige Institution(en) am KIT Laboratorium für Applikationen der Synchrotronstrahlung (LAS)
Institut für Beschleunigerphysik und Technologie (IBPT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2017
Sprache Englisch
Identifikator ISSN: 2469-9888
KITopen-ID: 1000067511
HGF-Programm 54.01.01 (POF III, LK 01)
ps- und fs-Strahlen
Erschienen in Physical review accelerators and beams
Band 20
Seiten Art. Nr. 030704
Nachgewiesen in Scopus
Web of Science
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