Forschungs- & Entwicklungsinformationsdienst der Gemeinschaft - CORDIS


HITRAP Berichtzusammenfassung

Project ID: HPRI-CT-2001-50036
Gefördert unter: FP5-HUMAN POTENTIAL
Land: Germany

Development of a linear decelerator for the HITRAP facility

A complete beam dynamics calculation of the HITRAP decelerator from the ESR towards the cooler trap has been performed. The beam dynamics design of the re-buncher, of the IH-structure and of the RFQ have been finalized and the corresponding lay-out of the cavity drift tube structures and the RFQ electrodes respectively has been done. A so-called double drift re-buncher (DDB), which comprises two coaxial resonator structures, has been included in order to increase the efficiency of the phase spread matching of the ion bunch from the ESR into the phase acceptance of the IH-structure. Hence 70% of the particles extracted from the ESR will be transmitted and decelerated. In order to improve the injection efficiency into the HITRAP cooler trap, a low energy de-buncher has been designed and included into the RFQ set-up. Because of the completed beam dynamics design, data of all magnetic quadrupole lenses are available and a call for tender can be done beginning of next year.

The rf-design of all decelerator cavities, which comprises the cavity geometry, drift tube structure and the tuning plungers, has been completed. 3-D CAD drawings of the buncher cavities for the production are being done and the call for tender is placed. All geometry data of the IH-structure have been submitted to the GSI design office in order to finalize the cavity design drawings. A call for tender is planned beginning of 2006. The RFQ design and the low energy de-buncher attached to the RFQ, will be performed by the manufacturer, based on a similar cavities built at the IAP Frankfurt. An order has been placed.

The preparation work has been done in order to start the HITRAP LINAC assembly in 2006, followed by beam commissioning end of 2006 and beginning of 2007.

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GSI Darmstadt
Planckstrabe 1
64291 Darmstadt
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