IPAC'10 - List of Authors (Orzhekhovskaya, A.)

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Orzhekhovskaya, A.

Paper	Title	Page
MOPD028	Commissioning of a New CW Radio Frequency Quadrupole at GSI	741
	P. Gerhard, W.A. Barth, L.A. Dahl, A. Orzhekhovskaya, K. Tinschert, W. Vinzenz, H. Vormann, S.G. Yaramyshev GSI, Darmstadt A. Schempp, M. Vossberg IAP, Frankfurt am Main
	The super heavy element research is one of the outstanding projects at GSI. At SHIP* six new elements have been discovered; moreover, nuclear chemical experiments with transactinides were recently performed at TASCA. This experimental program strongly benefits from high average beam intensities. In the past beam currents were raised significantly by a number of improvements. The present upgrade program comprises the installation of a superconducting (sc) 28 GHz ECR ion source, a new frontend (low energy beam transport and RFQ), and, in the long term, an sc cw Linac. For the short term, the new RFQ will raise the duty factor by a factor of two (50%), limited by the following accelerator only. This bottleneck will be resolved by the applied cw Linac. Beam tests with a newly developed sc CH cavity are scheduled for 2012. The setup of the RFQ as the major upgrade of the 20 year old HLI* is in progress, the commissioning will be finished in March 2010. Besides a higher duty factor, improved longitudinal beam quality and transmission are expected. This paper reports on the challenging rf and beam commissioning. * Separator for Heavy Ion Reaction Products TransActinide Separator and Chemistry Apparatus * High charge state injector, a part the UNILAC

Paper

Title

Page

MOPD028

Commissioning of a New CW Radio Frequency Quadrupole at GSI

741

P. Gerhard, W.A. Barth, L.A. Dahl, A. Orzhekhovskaya, K. Tinschert, W. Vinzenz, H. Vormann, S.G. Yaramyshev
GSI, Darmstadt
A. Schempp, M. Vossberg
IAP, Frankfurt am Main

The super heavy element research is one of the outstanding projects at GSI. At SHIP* six new elements have been discovered; moreover, nuclear chemical experiments with transactinides were recently performed at TASCA**. This experimental program strongly benefits from high average beam intensities. In the past beam currents were raised significantly by a number of improvements. The present upgrade program comprises the installation of a superconducting (sc) 28 GHz ECR ion source, a new frontend (low energy beam transport and RFQ), and, in the long term, an sc cw Linac. For the short term, the new RFQ will raise the duty factor by a factor of two (50%), limited by the following accelerator only. This bottleneck will be resolved by the applied cw Linac. Beam tests with a newly developed sc CH cavity are scheduled for 2012. The setup of the RFQ as the major upgrade of the 20 year old HLI*** is in progress, the commissioning will be finished in March 2010. Besides a higher duty factor, improved longitudinal beam quality and transmission are expected. This paper reports on the challenging rf and beam commissioning.

* Separator for Heavy Ion Reaction Products
** TransActinide Separator and Chemistry Apparatus
*** High charge state injector, a part the UNILAC