Performance of the TU/e 2.6 Cell Rf-photogun in the 'Pancake' Regime

Conference Contribution

Geer, van der, S.B., Loos, de, M.J., Luiten, O.J., Brussaard, G.J.H., Wiel, van der, M.J. & Pöplau, G. (2004). Performance of the TU/e 2.6 Cell Rf-photogun in the 'Pancake' Regime. Proceedings of the 9th European Particle Accelerator Conference, (EPAC 2004), 5-9 July 2004, Luzern, Switzerland (pp. WEPLT118-2128/2130). Lucerne, Switzerland: European Physical Society Accelerator Group.



The 2.6 cell rf-photogun currently in operation at Eindhoven University of Technology has been designed as a booster for a 2 MeV semi-DC accelerator with a field of 1 GV/m. In this paper we present GPT simulation results of the TU/e gun, operated without its pre-accelerator, in the low-charge short-pulse regime. The main part of the paper describes detailed calculations of bunch lengthening due to path-length differences and space-charge effects, making use of high-precision field-maps and the newly developed 3D mesh-based space-charge model of GPT. It is shown that with the present set-up bunches can be produced that are well suited for injection into a planned experiment for controlled acceleration in a plasma-wakefield accelerator.