Wuppertal 2015 – wissenschaftliches Programm

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 5: Poster

AKBP 5.5: Poster

Dienstag, 10. März 2015, 11:00–19:00, Foyer Ebene G.10

Proposal of an IH-DTL design as replacement for the GSI UNILAC Alvarez for FAIR — •Hendrik Hähnel, Ulrich Ratzinger, and Rudolf Tiede — Institut für Angewandte Physik, Goethe Universität Frankfurt, Deutschland

To meet the requirements of 15 mA U²⁸⁺ at 11.4 AMeV for injection into the SIS18, the GSI UNILAC has to be upgraded. By upgrading the MEBT section between the RFQ and IH-DTL as proposed by the authors, the prestripper section can reach the required 18 mA U⁴⁺ with high efficiency. The Alvarez linac in the poststripper U²⁸⁺ section of the UNILAC is nearing 40 years of operation and therefore has to be replaced to ensure reliable and efficient operation for FAIR. We propose an IH-DTL linac as replacement for the current GSI UNILAC Alvarez. The new design is based on the KONUS beam dynamics concept and delivers high beam quality well within FAIR requirements. It will drastically reduce the fabrication costs and will leave about 30 m within the UNILAC for later linac energy upgrades to improve the high current performance of FAIR.