| Paper |
Title |
Other Keywords |
Page |
| TUPLS035 |
The HITRAP Decelerator Project at GSI
|
ion, GSI, ESR, rfq |
1568 |
| |
- L.A. Dahl, W. Barth, M. Kaiser, O.K. Kester, H.J. Kluge, W. Vinzenz
GSI, Darmstadt
- B. Hofmann, U. Ratzinger, A.C. Sauer, A. Schempp
IAP, Frankfurt-am-Main
| |
The heavy ion trap (HITRAP) at GSI is a funded project since 2004. Highly charged ions up to U92+ provided by the GSI accelerator facility will be decelerated and subsequently injected into a Penning trap for further cooling almost to rest. A combination of an IH- and an RFQ-structure decelerates the ions from 4 MeV/u down to 6 keV/u. In front of the decelerator a double-drift-buncher-system provides for phase focusing and a final debuncher integrated in the RFQ-tank reduces the energy spread in order to improve the efficiency for beam capture in the cooler trap. The report gives an overview of the final beam dynamic design of the entire decelerator. Besides the construction status of the cavities, particular beam diagnostic features due to the short pulses of 1 μs and 108 MHz bunch frequency, and the measures for technical and controls integration into the existing GSI accelerator complex are presented. Finally the recent time schedule and considerations for commissioning are shown.
|
|
|
|
| TUPLS041 |
The HITRAP RFQ Decelerator at GSI
|
rfq, GSI, ion, emittance |
1586 |
| |
- B. Hofmann, A. Schempp
IAP, Frankfurt-am-Main
- O.K. Kester
GSI, Darmstadt
| |
The HITRAP linac at GSI will decelerate ions from 5 MeV/u to 6 keV/u for experiments with the large GSI Penning trap. The ions, provided by the GSI accelerator facility, will be decelerated at first in the existing experimental storage ring (ESR) down to an energy of 5 MeV/u, and injected into a new IH decelerator and decelerated to 5oo keV/u. The following 4- Rod type RFQ will decelerate the ion beam from 5oo keV to 6 keV/u. The RFQ has been designed and will be built at the Institute for Applied Physics in Frankfurt. The properties of the RFQ decelerator and the status of the project will be discussed.
|
|
|
|
| TUPLS086 |
Charge Breeding Exploration with the MAXEBIS
|
ion, electron, GSI, injection |
1702 |
| |
- H.Z. Zimmermann
LMU, Garching
- R. Becker, M.K. Kleinod
IAP, Frankfurt-am-Main
- O.K. Kester
GSI, Darmstadt
| |
The demand of exotic ions prior to their injection into an accelerator has driven the development of the charge breeding method. Existing facilities like REX-ISOLDE or ISAC at TRIUMF are already using a charge state booster for the post acceleration of radioactive ions. Planned facilities like EURISOL for instance have identified the need of a breeding system. In order to be comparable to the efficiency to a brut force acceleration employing stripper, the efficiency of a charge breeder has to be maximized and the breeding time has to be shortened comparing the existing breeder systems. Therefore the exploration and optimization of the charge state breeding is mandatory and supported by the EU. The Frankfurt MAXEBIS has been modified within the past years towards high current electron beam and external injection of alkaline ions by a surface ionisation source. The electron gun, the inner electrode structure and the collector of the MAXEBIS have been modified. The system has been shipped to GSI and re-assembled. The goals of the following experiments will be systematic studies of the breeding efficiency. The new setup and first experimental results will be presented.
|
|
|
|