Freiburg 1999 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 37: Postersitzung / Instrumentation und Anwendungen II

HK 37.12: Poster

Mittwoch, 24. März 1999, 10:15–12:00, Foyer

Implementation of the Pulse Processing Analog to Digital Converter into a PC enviroment — •W. Gast¹, H. Brands¹, A. Georgiev², H.M. J"ager¹, R.M. Lieder¹, L. Mihailescu¹, M.J. Rossewij¹, and J. Stein² — ¹Forschungszentrum J"ulich — ²target systemelectronic GmbH Solingen

The next generation of high resolution multi-detector arrays for nuclear spectroscopy employing highly segmented tracking detectors requires several hundred channels of digital signal processing electronics, which allow for on-line pulse shape analysis. Therefore a new, compact, and low-cost version of the Pulse Processing Analog to Digital Converter (PPADC) has been developed. It implements four digital processing channels as daughterboards on an ISA/PCI motherboard for the PC enviroment. Each daughterboard, measuring only 84x66mm, contains all hardware needed for high resolution processing and a detailed on-line pulse shape analysis: the analog signal conditioning, two 12bit sampling ADC’s with a combined sampling rate of up to 80 Msps, an in-circuit programmable logic device (PLD), and a high performance digital signal processor (DSP). Additional DSP’s on the motherboard perform the triggering and readout tasks.