High intensity target wheel at TASCA: target wheel control system and target monitoring |
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Authors: | E. Jäger H. Brand Ch. E. Düllmann J. Khuyagbaatar J. Krier M. Schädel T. Torres A. Yakushev |
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Affiliation: | 1. GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstr. 1, 64291, Darmstadt, Germany 2. Johannes Gutenberg-Universit?t Mainz, Mainz, Germany 3. Helmholtz-Institut Mainz, Mainz, Germany
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Abstract: | At GSI Darmstadt, the gas-filled recoil separator transactinide separator and chemistry apparatus (TASCA) is in operation for experiments with superheavy elements. It is optimized for hot-fusion reactions with actinide targets. The small cross sections of such reactions require the capability to accept highest beam intensities. The limited availability of some of the exotic actinide isotopes limits the size of target systems. To maintain target integrity during long experiments, automated target monitoring and control is necessary. Here, the TASCA target wheel system and the on-line target monitoring are described. |
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