Euroball Cluster experiments at GSI 1996

To take advantage of the Euroball Cluster detectors available in Germany prior to their implementation in Euroball III, an experimental campaign at GSI has started end of March 1996. The program approved by the GSI Experimentausschuß and the German Cluster Collaboration contains 10 proposals.


In total, 77 days of beam on target have been allocated to these experiments. Most experiments will be performed at location X7 of the Unilac experimental hall. They make use of the Ring Set-up of five Cluster detectors in conjunction with the Crystal Ball and PPAC arrays, respectively a Si-ball. The Cube Set-up will be used at the On-line Mass Separator and finally the study of 40Ti will take place at the FRS employing two Cluster detectors at close distances.

More detailed information you can find about the following topics:

For further information you may contact directly the members of the EBGSI96-collaboration or one of the Euroball-groups all over europe participating in this project.

Features of the Cluster-Ring

A ring of five Clusters at a fixed target distance. The Cluster-Ring is used in conjunction with the Crystal Ball. See a schematic drawing of the Cluster-Ring to obtain further information about the location of each crystal.

Features of the Cluster-Cube

The Cluster-Cube will be a closely packed cube of six Cluster detectors. It provides a very large detection efficiency at moderate gamma energies and small multiplicities.

Frontend Electronics

Standard NIM and CAMAC electronics is used as long as VXI is unavailable. All Crystal Ball electronics remains unchanged for all experiments whereas the trigger logic and ancillary detector electronics will be adapted to the particular requirements of each experiment. See your set-up for details.