München 2006 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 21: Postersitzung

HK 21.20: Poster

Dienstag, 21. März 2006, 15:30–17:00, P

Architecture of the DAQ System for WASA at COSY — •Peter Wüstner — Zentralinstitut für Elektronik, Forschungszentrum Jülich

During the relocation of the WASA detector (Wide Angle Shower Apparatus) from Uppsala to the COoler SYnchrotron COSY in Jülich the data acquisition system (DAQ-System) will be renewed. This is necessary because of the advanced age of the current DAQ-System with the resulting maintenance problems and the higher luminosity at COSY.

Based on the existing DAQ-Systems of COSY-Experiments [1] and the already existing plans to upgrade these systems a nearly complete new DAQ-System is being built for WASA [2]. It comprises of readout electronics based on an optimized parallel bus with LVDS technology and FPGA-controlled event and buffer management, a synchronisation system [3] and a high speed optical link to the readout computers.

TDCs, using F1 and GPX chips are already developed, ’simulated’ QDCs, using flash ADCs and integration logic in FPGAs are still in the development phase.

[1] M.Drochner, W.Erven, P.Wüstner, K.Zwoll: IEEE Trans. Nucl. Sci 45, 4(1998)

[2] H.Kleines: proc. 14th IEEE Real Time Conference, Stockholm, Sweden, June 2005

[3] P.Wüstner et al. proc. 14th IEEE Real Time Conference, Stockholm, Sweden, June 2005