| Paper |
Title |
Page |
| MOPC140 |
Status of the Multipurpose Fully Superconducting ECR Ion Source
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400 |
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- G. Ciavola, L. Celona, S. Gammino, F. Maimone, D. Mascali
INFN/LNS, Catania
- H. A. Koivisto
JYFL, Jyvaskyla
- R. Lang, J. Maeder, J. Rossbach, P. Spaedtke, K. Tinschert
GSI, Darmstadt
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The MSECRIS source has been designed with the aim to exceed the highest currents of highly charged heavy ions available up to now. It is based on a minimum B trap made of a hexapole and three solenoids. The design magnetic field is 2.7 T for the hexapole and 4.5 T for the mirror field, in order to permit to operate not only at 28 GHz but also at higher frequency, thus increasing the plasma density and finally the beam current. Such high level of magnetic field is a challenge because of the forces arising on the superconducting coils and it largely exceeds the highest magnetic field available for existing ECRIS. A description of the source and of its preliminary results will be given. The source has been built in the frame of the European collaboration EURONS/JRA07-ISIBHI and it is now installed at the EIS testbench of GSI.
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| THPP021 |
Status of the Unilac-upgrade Programme for the Heavy Element Research at GSI-Ship
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3416 |
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- P. Gerhard, W. Barth, L. A. Dahl, K. Tinschert
GSI, Darmstadt
- A. Schempp
IAP, Frankfurt am Main
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For more than 30 years the heavy-element research using the velocity separator SHIP is one of the major experiments at GSIs heavy ion linear accelerator UNILAC. On of the major contributions which led to the discovery of six new elements since 1981 is the perpetual effort to increase the beam intensity. Since the early 1990's the beam current available was raised significantly by a number of improvements concerning the source, the LEBT and the accelerator. The next steps are scheduled for 2009 and include an upgrade of the Radio Frequency Quadrupole-accelerator (RFQ) and a new superconducting 28 GHz-ECR ion source. The new RFQ will allow higher duty factors up to 100% and improve the longitudinal beam quality as well as the beam transmission. The new ion source will provide an increase in beam intensity and simultaneously higher charge states. The new source will be installed in addition to the existing one, therefore a second LEBT-system has to be designed and integrated into the High Charge State Injector. This paper presents the status quo of both the RFQ and the ion source upgrade and will provide technical data.
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