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TY - CPAPER AU - Scharrer, P. AU - Barth, W.A. AU - Bevcic, M. AU - Düllmann, Ch.E. AU - Groening, L. AU - Horn, K.P. AU - Jäger, E. AU - Khuyagbaatar, J. AU - Krier, J. AU - Scharrer, P. AU - Yakushev, A. TI - A Pulsed Gas Stripper for Stripping of High-Intensity, Heavy-Ion Beams at 1.4 MeV/u at the GSI UNILAC J2 - Proc. of Heavy Ion Accelerator Technology Conference (HIAT2015), Yokohama, Japan, 7-11 September 2015 AB - The GSI UNILAC in combination with SIS18 will serve as a high-current, heavy-ion injector for the future FAIR. It has to meet high demands in terms of beam brilliance at a low duty factor (100 mus beam pulse length, 2.7 Hz repetition rate). An advanced 1.4 MeV/u gas stripper setup has been developed, aiming at an enhanced yield into the required charge states. The setup delivers short, high-density gas pulses in synchronization with the beam pulse. This provides an increased gas density at a reduced gas load for the differential pumping system. In recent measurements, high-intensity, heavy-ion beams of U⁴⁺ were successfully stripped and separated for the desired charge state. The modified stripper setup, as well as major results, are presented, including a comparison to the present gas stripper based on a N₂ gas-jet. The stripping efficiency into the desired 28⁺ charge state was significantly increased by up to 60 % using a hydrogen stripper target while the beam quality remained similar. PB - JACoW CY - Geneva, Switzerland SP - 144 EP - 147 KW - ion KW - target KW - injection KW - heavy-ion KW - emittance DA - 2016/02 PY - 2016 SN - 978-3-95450-131-1 DO - 10.18429/JACoW-HIAT2015-TUA1C01 UR - http://accelconf.web.cern.ch/AccelConf/HIAT2015/papers/tua1c01.pdf ER -