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HK: Hadronen und Kerne

HK 13: Instrumentation II, Data Acquisition Systems

HK 13.8: Vortrag

Montag, 16. März 1998, 18:45–19:00, A

Test of a pulse-shape analyzer based on digital signal processing techniques — •W. Gast¹, A. Georgiev², J. Stein², E.A. van der Meer³, L. Mihailescu¹, and R.M. Lieder¹ — ¹Forschungszentrum J"ulich — ²target systemelectronic Solingen — ³University of Utrecht

Digital signal processing provides efficient means to extract timing and position information from semiconductor detector signals by pulse shape analysis. This information is vital for the correct reconstruction of scattered events in the highly segmented tracking detectors of future multi-detector arrays. A new prototype of the Pulse Processing Analog to Digital Converter (PPADC) has been built, which features:
- on-line linearization and stabilisation of the the response of the sampling ADC to provide ultimate energy resolution,
- time-variant decimation to allow full speed sampling of the detailed shape of the detector signal,
- pipe-line processing to execute all relevant digital algoritms in real time. The results of the first test experiments will be reported.