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TY - CONF AU - Zhang, C. AU - Baschke, M. AU - Groening, L. AU - Kester, O.K. AU - Mickat, S. AU - Podlech, H. AU - Ratzinger, U. AU - Tiede, R. AU - Vormann, H. ED - Petit-Jean-Genaz, Christine ED - Kim, Dong Eon ED - Kim, Kyung Sook ED - Ko, In Soo ED - Schaa, Volker RW TI - HSI RFQ Upgrade for the UNILAC Injection to FAIR J2 - Proc. of IPAC2016, Busan, Korea, May 8-13, 2016 C1 - Busan, Korea T2 - International Particle Accelerator Conference T3 - 7 LA - english AB - As an injector to the future FAIR facility, the UNILAC accelerator is required to deliver ion beams with high intensities as well as good beam quality. The electrodes of the current HSI RFQ are exhausted and the current RFQ itself is assigned to be one bottle-neck for improving the brilliance performance of the whole linac. Based on the so-called NFSP (New Four-Section Procedure) method, a new RFQ electrode design has been developed and optimized for 20 emA, U⁴⁺ beams at the RFQ entrance. Since only the electrodes will be replaced, the RFQ length has been kept unchanged. Even with a lowered inter-vane voltage, the new RFQ design has achieved better beam performance compared to the previous design. This paper will focus on the performed study with respect to beam dynamics. PB - JACoW CP - Geneva, Switzerland SP - 877 EP - 879 KW - rfq KW - bunching KW - emittance KW - simulation KW - ion DA - 2016/06 PY - 2016 SN - 978-3-95450-147-2 DO - 10.18429/JACoW-IPAC2016-MOPOY016 UR - http://jacow.org/ipac2016/papers/mopoy016.pdf ER -