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HK: Fachverband Physik der Hadronen und Kerne
HK 38: Instrumentation und Anwendungen
HK 38.1: Vortrag
Mittwoch, 14. März 2007, 17:00–17:15, B
The lightweight Straw Tube Tracker for the proposed PANDA detector at GSI — •Andrey Sokolov, James Ritman, and Peter Wintz for the PANDA collaboration — Institute für Kernphysik I, Forschungzentrum Jülich, 52425 Jülich
One of the components of the approved extension to the accelerator facility at GSI/Darmstadt is a storage ring for high luminosity phase space cooled antiprotons with momenta between 1.0 and 15 GeV/c. Antiproton annihilation reactions on protons and nuclei will be investigated with a detector system called PANDA. A Straw Tube Tracker (STT) is currently being considered as an option for the PANDA central tracking device.
We propose a new design for the STT based on the highly self-supporting technology. The STT will have inner and outer diameters 15 and 42 cm and a length of 1.5 m and will consist of about 5000 straws with a diameter 10 mm. A transversal spatial resolution of the straw tube will be about 150 µm. To avoid massive support structures all straws will be glued together and stabilized by overpressure. In order to have the longitudinal coordinate several straw layers will be skewed by 3o with respect to the beam axis. Due to high event rate (107 events/s) the STT have to cope a high radiation dose up to 1C cm−1 year−1.
This talk will present an overview of the simulations and prototyping performed to investigate the performance of the STT for PANDA. Supported in part by BMBF and FZ-Juelich.