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TY - CONF AU - Schuett, M. AU - Ratzinger, U. AU - Syha, M. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - Progress of the Modulated 325 MHz Ladder RFQ J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018 C1 - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - Based on the positive results of the unmodulated 325 MHz Ladder-RFQ prototype from 2013 to 2016, we developed and designed a modulated 3.3 m Ladder-RFQ*. The unmodulated Ladder-RFQ features a very constant voltage along the axis. It accepted 3 times the operating power of which is needed in operation**. That level corresponds to a Kilpatrick factor of 3.1 with a pulse length of 200 μs. The 325 MHz RFQ is designed to accelerate protons from 95 keV to 3.0 MeV according to the design parameters of the proton linac within the FAIR project. This particular high frequency creates difficulties for a 4-ROD type RFQ, which triggered the development of a Ladder RFQ with its high symmetry. The results of the unmodulated prototype have shown, that the Ladder-RFQ is a suitable candidate for that frequency. The duty cycle is suitable up to 5%. The basic design and tendering of the RFQ has been successfully completed in 2016. Manufacturing will be completed in May 2018. We will show the latest results of manufacturing, beam dynamics simulations for the matching between LEBT and RFQ. PB - JACoW Publishing CP - Geneva, Switzerland SP - 952 EP - 954 KW - rfq KW - linac KW - proton KW - quadrupole KW - operation DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - 10.18429/JACoW-IPAC2018-TUPAK001 UR - http://jacow.org/ipac2018/papers/tupak001.pdf ER -