Bonn 2010 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 32: Beschleunigerphysik II

HK 32.4: Vortrag

Dienstag, 16. März 2010, 17:30–17:45, HG ÜR 4

Developement of a 6 GHz subsystem for the RF control system of the S-DALINAC* — •Christoph Burandt, Asim Araz, Uwe Bonnes, Ralf Eichhorn, Joachim Enders, Martin Konrad, Bastian Steiner, and Thomas Weiland — Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstraße 9, 64289 Darmstadt, Germany

A new source of polarized electrons is currently installed at the S-DALINAC. Due to spatial constraints at the existing installation, detailed planning and extensive simulation were done. Results from beam dynamics calculations show the necessity of further bunch compression. The new injector design therefore includes a harmonic prebunching system consisting of two normal conducting copper cavities operated at 3 GHz and 6 GHz respectively.

Since the S-DALINAC is exclusively operated at 3 GHz new 6 GHz components have to be developed and need to be integrated into the RF control system. The basic idea of the existing analog control system and the future digital control system is the down conversion of RF signals to the base band. Therefore the low frequency part of each system can be used without adaptions while the RF module requires redevelopment.

This talk covers the redesign of the existing 3 GHz RF module for 6 GHz and reports on results obtained with a prototype.

*Supported by DFG through SFB 634.

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