The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Barth, W.A. AU - Adonin, A. AU - Düllmann, Ch.E. AU - Heilmann, M. AU - Hollinger, R. AU - Jäger, E. AU - Khuyagbaatar, J. AU - Krier, J. AU - Scharrer, P. AU - Vormann, H. AU - Yakushev, A. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - U²⁸⁺ Intensity Record Applying a H2-Gas Stripper Cell J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015 C1 - Richmond, VA, USA T2 - International Particle Accelerator Conference T3 - 6 LA - english AB - Meeting the FAIR science requirements higher beam intensity has to be achieved in the present GSI-accelerator complex. An advanced upgrade program for the UNILAC aimed to meet the FAIR requirements. Stripping is a key technology for all heavy ion accelerators. For this an extensive research and development program was carried out to optimize for high brilliance heavy ion operation. After upgrade of the supersonic N2-gas jet, implementation of high current foil stripping and preliminary investigation of H2 gas jet operation, recently a newly developed H2 gas cell uses a pulsed gas regime synchronized with arrival of the beam pulse. An obviously enhanced stripper gas density as well as a simultaneously reduced gas load for the pumping system result in an increased stripping efficiency, while the beam emittance remains the same. A new record intensity (7.8 emA) for U²⁸⁺ beams at 1.4 MeV/u has been achieved applying the pulsed high density H2 stripper target, while the MeVVa ion source with a newly developed extraction system delivered a high intensity U⁴⁺ beam. The experimental results will be presented in detail. PB - JACoW CP - Geneva, Switzerland SP - 3693 EP - 3695 KW - operation KW - target KW - ion KW - heavy-ion KW - acceleration DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-THPF008 UR - http://jacow.org/ipac2015/papers/thpf008.pdf ER -