Göttingen 2012 – scientific programme
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T: Fachverband Teilchenphysik
T 79: Beschleunigerphysik 1
T 79.2: Talk
Monday, February 27, 2012, 17:00–17:15, VG 1.103
Commissioning report on the RFQ of the HITRAP decelerator — •Michael Maier1, Roland Repnow2, Frank Herfurth1, Stepan Yaramishev1, Dennis Neidherr1, Gleb Vorobyev1, and Nikita Kotovskiy1 — 1GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstr. 1, 64291 Darmstadt — 2Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg
Commissioning of the HITRAP decelerator behind the Experimental storage ring (ESR) has been difficult and not fully successful yet. According to simulations the present RFQ design requires beam with an input energy of 530 keV/u. This is above the limit of the IH decelerator which has been designed for 500 keV/u output energy.
In order to verify the simulation results the RFQ has been set up together with a test bench behind a pelletron accelerator at the Max Planck Institute for nuclear physics in Heidelberg. This pelletron provides DC beam with A/q<3 in the desired energy range of 450 - 550 keV/u.
This setup allows for a rapid scan through this otherwise difficult to reach parameter space. Additionally it will serve a second time as a commissioning setup for the next RFQ electrode design matched to the IH output energy.
In this contribution the simulations and the experimental results of this test are compared as well as a first design study for a new RFQ decelerator structure is presented.