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Dresden 2013 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 51: Poster - Beschleunigerphysik

HK 51.29: Poster

Wednesday, March 6, 2013, 16:45–19:00, HSZ 1.OG

Design Study of a High Frequency Proton Ladder RFQ — •Robert Brodhage and Ulrich Ratzinger — IAP, Uni Frankfurt

For the research program with cooled antiprotons at FAIR a dedicated 70 MeV, 70 mA proton injector is required. In the low energy section, between the Ion Source and the main linac an RFQ has to be designed. Accelerating protons from 95 keV to 3.0 MeV the RFQ will oscillate at 325 MHz. This particular high frequency for an RFQ creates difficulties which are challenging in developing this cavity. In order to define a satisfactory geometrical configuration for this resonator, both from the RF and the mechanical point of view, different designs have been examined and compared. Very promising results have been reached with an ladder type RFQ, especially concerning the dipole component of the accelerating fields, which is almost not noticeable. This paper will show 3D simulations of the general layout and a whole cavity demonstrating the power of a ladder type RFQ. It will outline a possible layout for the RFQ within the new FAIR proton injector.

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