Parallel arrays of digital signal processors as central decision elements for upper level triggers in high energy physics experiments

Conference · Mon Feb 01 00:00:00 EST 1988 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6410280

Crosetto, D; Menichetti, E; Rinaudo, G; Werbrouck, A E ^[1]

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1. Istituto Nazionale di Fisica Nucleare, Sez. di Torino (IT)

The increasing size and complexity of modern, large scale experiments at high energy accelerators and storage rings require the implementation of sophisticated trigger systems. For both tracking devices and calorimeters, the conflicting trends toward higher luminosity and improved background rejection prompt for the exploitation of a hierarchical, multi-level trigger logic: the upper levels are usually devoted to 'physical' background rejection and event flagging, as opposed to the lower level logic, mostly dealing with 'dull' background at high rate. For the higher trigger levels, depending on the different machine and detector configurations, it is sometimes possible to design the 'detector data box' as a programmable device, with increased flexibility and efficiency; recent developments in the field of VLSI Digital Signal Processors (DSP's) make it possible to operate large arrays of DSP's working parallel, giving excellent data throughputs inexpensively, provided that fast and efficient software algorithms can be implemented. In this paper, a flexible and powerful scheme of this type is described, for two different experimental conditions: the Forward ElectroMagnetic Calorimeter (FEMC) of the DELPHI experiments at LEP (CERN), and the Straw Tube Chamber (STC) of the E760 experiment at the Antiproton Accumulator (FNAL).

• OSTI ID: 6410280
• Report Number(s): CONF-871006-; TRN: 89-006205
• Journal Information: IEEE Trans. Nucl. Sci.; (United States), Vol. 35:1; Conference: 34. nuclear science symposium and 19. nuclear power systems symposium, San Francisco, CA, USA, 21 Oct 1987
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ARRAY PROCESSORS
INTEGRATED CIRCUITS
TRIGGER CIRCUITS
BENCH-SCALE EXPERIMENTS
HIGH ENERGY PHYSICS
IMAGE PROCESSING
RADIATION DETECTION
DETECTION
ELECTRONIC CIRCUITS
MICROELECTRONIC CIRCUITS
PHYSICS
PROCESSING
PULSE CIRCUITS
440104* - Radiation Instrumentation- High Energy Physics Instrumentation