München 2019 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 15: Poster session

AKBP 15.5: Poster

Thursday, March 21, 2019, 16:30–18:00, Durchgangshalle

Development of compact in vacuum high-voltage power supplies towards tabletop dielectric laser accelerators — •Stefanie Kraus, Johannes Illmer, Norbert Schönenberger, Roy Shiloh, and Peter Hommelhoff — Department Physik, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Staudtstraße 1,91058 Erlangen

High voltage sources are used in a variety of applications in environmental condition including X-ray tubes, electron microscopes and particle accelerators. One of the most common methods of high voltage generation is the Half-Wave Cockcroft-Walton voltage multiplier (HWCW), where each stage consists of two capacitors and two diodes. The aim of this work is to introduce a circuit design that provides a low power, high voltage (60keV) with low ripple (<1V) and a small footprint, while being fully UHV compatible. By placing this HWCM inside the vacuum one can avoid the large-size HV feedthrough and the isolation requirements. Such a unit could be used to operate an electron gun to provide a small sized self-contained electron source, which will be utilized for future dielectric laser accelerator experiments. Recent experimental results and simulations are presented.