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Project P4
Micro Pattern Gas Detectors Participants: CERN, GSI, LNF; ESR: 3 yrs, ER: 2 yrs (contact person: L. Ropelewski, CERN) High precision and ultra-low mass tracking detectors based on the GEM technology. The CERN group is currently optimizing the single mask GEM technology which allows building large area detectors. The R&D program consists of the construction and evaluation of small size detector prototypes and the performance comparison with detectors of alternative technologies. Based on the results of these studies a full size prototype detector will be designed, constructed and studied in a test beam. Electronics cross talk issues will be addressed in readout structure design by detailed detector and signal simulations and the radiation tolerance and material budget will be investigated. The LNF group is working on an ultra-light, cylindrical and dead-zone free triple-GEM detector (C-GEM) made of five concentric layers. A small size prototype has already been built successÂfully. The proposed detector is optimized for applications where large size combined with low mass is essential. The project is technologically innovative and represents a significant step forward with respect to the existing vertex tracking technology. |