Title :
Fast arithmetic and fault tolerance in the FERMI system
Author :
Breveglieri, Luca ; Dadda, Luigi ; Piuri, Vincenzo
Author_Institution :
Dipartimento di Elettronica e Inf., Politecnico di Milano, Italy
Abstract :
The FERMI is a data acquisition system for calorimetry experiments in high energy physics at the LHC, CERN. The system contains a large number of acquisition channels, with a precision of 16 bits and a sampling rate of 40 MHz. A large part of the information driven by the channels is processed locally, to reduce the amount of data. This requires to cluster several channels by adding them. The paper presents the design of a fast, low cost adder chip, based on the implementation of column compression techniques for the computation of integer addition. Since the system is operating in a radiation-hard environment, fault tolerance (namely fault detection) is implemented by means of arithmetic codes
Keywords :
arithmetic codes; calorimetry; data acquisition; digital arithmetic; fault tolerant computing; high energy physics instrumentation computing; FERMI system; acquisition channels; arithmetic codes; calorimetry experiments; column compression techniques; data acquisition system; fast arithmetic; fault detection; fault tolerance; high energy physics; integer addition; low cost adder chip; radiation-hard environment; Arithmetic; Calorimetry; Costs; Data acquisition; Fault detection; Fault tolerance; Fault tolerant systems; Large Hadron Collider; Sampling methods; Silicon;
Conference_Titel :
Application-Specific Systems, Architectures and Processors, 1997. Proceedings., IEEE International Conference on
Conference_Location :
Zurich
Print_ISBN :
0-8186-7959-X
DOI :
10.1109/ASAP.1997.606842
