Mainz 2004 – scientific programme

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T: Teilchenphysik

T 407: Kalorimeter

T 407.8: Talk

Wednesday, March 31, 2004, 15:45–16:00, RW 5

Sampling ADC for Electromagnetic Calorimeter of COMPASS experiment — •I. Konorov, B. Grube, A. Mann, S. Paul, and L. Schmitt — TU-München, Physik-Department E18

The architecture, features and performance of the SADC(Sampling Analogue to Digital Converter) module designed and built for Electromagnetic calorimeter of COMPASS, a fixed target experiment at CERN’s SPS, are discussed. The SADC is a 32 channel, 12 bit and 80 Megasamples per second conversion rate module. The module has a memory to compensate trigger latency up to 4 useconds and zero suppression logic. The module provides amplitude information with a precision better then 12 bits. good timing information and it also has a capability to identify and resolve pileup events. The performance parameters of the SADC module are presented.

This work is supported by the BMBF and the Maier-Leibnitz-Labor, Garching.