Berlin 2024 – wissenschaftliches Programm

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 4: Beam Dynamics I

AKBP 4.6: Vortrag

Montag, 18. März 2024, 18:15–18:30, E 020

Comparing simulations of ASTRA and 6D beam envelope equations for electron beam parameters at DESY_PITZ — •Zarmina Shah^1,2, Namra Aftab², and Mohsen Kelisani² — ¹Brandenburgische Technische Universität-Cottbus — ²Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738 Zeuthen, Germany

The Photo Injector Test facility at DESY in Zeuthen (PITZ) was established as a test stand of electron sources for the European XFEL and FLASH. At PITZ, A Space Charge Tracking Algorithim (ASTRA) is utilized to perform beam dynamic simulations. ASTRA is based on tracking individual particles and is very time consuming. The scope of this work was to compare the results of ASTRA with a new algorithm based on 6D envelope equations, which is much faster. Astra simulations were carried out for electron beam for charge 250 pC and energy 6.3 MeV. The resulting beam size and the beam divergence results were compared to the results of the 6 dimensional envelope-based equations. The evaluation was done for different number of particles as well as under different energy chirp manipulation and the results show good agreement.

Keywords: Longitudinal phase space; Space charge; Astra simulations; Tomography; Envelope based equations