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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 1: Particle Sources and Electron Accelerators

AKBP 1.6: Vortrag

Montag, 19. März 2018, 17:15–17:30, NW-Bau - HS4

Inverted Geometry Photo-electron Gun Research and Development at TU Darmstadt* — •Maximilian Herbert, Joachim Enders, Yuliya Fritzsche, Neeraj Kurichiyanil, and Vincent Wende — Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstraße 9, 64289 Darmstadt

The Institute for nuclear physics at TU Darmstadt houses the Superconducting Darmstadt Linear Accelerator S-DALINAC. A photo-electron gun using GaAs photocathodes to provide pulsed and/or polarized electron beams, the S-DALINAC Polarized Injector SPIn, has been installed [1] for future nuclear-structure investigations [2]. In order to conduct research and development for this source, a test facility for Photo-Cathode Activation, Test and Cleaning using atomic-Hydrogen (Photo-CATCH) has been constructed [3]. This setup provides several chambers for photocathode handling and a 60 keV beamline for photo-gun design studies [4]. Currently, an upgraded inverted insulator geometry is under investigation for Photo-CATCH that is supposed to be implemented at SPIn. This talk will present the current developments at Photo-CATCH and future measurements.

*Work supported by the Deutsche Forschungsgemeinschaft through GRK 2128 'AccelencE'

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

[2] J. Enders, AIP Conf. Proc. 1563, 223 (2013)

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

[4] N. Kurichiyanil, Dissertation, TU Darmstadt (2016)