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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 1: Particle Sources and Electron Accelerators

AKBP 1.7: Vortrag

Montag, 19. März 2018, 17:30–17:45, NW-Bau - HS4

Simulations on a spin-polarized photo-electron gun for the superconducting Darmstadt electron linear accelerator S-DALINAC* — •Vincent Wende, Joachim Enders, Yuliya Fritzsche, Maximlian Herbert, and Neeraj Kurichiyanil — Institut für Kernphysik, TU Darmstadt, Schlossgartenstraße 9, 64289 Darmstadt

The S-DALINAC Polarized-electron Injector SPIn [1] provides pulsed and/or polarized electron beams with an electron energy up to 125 keV. To improve the injection into the accelerator, an upgrade of the SPIn photo gun to an operational voltage of 200 kV is planned. For this upgrade it is envisaged to use the inverted insulator geometry, which was previously examined at the Photo-Cathode Activation, Test and Cleaning using atomic-Hydrogen (Photo-CATCH) test facility [2] with an operational voltage of 60 kV. In this talk simulation results, obtained with CST, concerning the adaptability of this gun geometry to 200 kV and observed challenges will be presented.

[1] Y. Poltoratska et al., J.Phys.: Conf. Series 298, 012002 (2011)

[2] M.Espig, Dissertation, TU Darmstadt (2016)

Work supported in part by DFG (GRK 2128 AccelencE and SFB

1245)