Soudan 2 data acquisition and trigger electronics
The 1.1 kton Soudan 2 detector is read out by 16K anode wires and 32K cathode strips. Preamps from each wire or strip are bussed together in groups of 8 to reduce the number of ADC channels. The resulting 6144 channels of ionization signal are flash-digitized every 150 ns and stored in RAM. The raw data hit patterns are continually compared with programmable trigger multiplicity and adjacency conditions. The data acquisition process is managed in a system of 24 parallel crates each containing an Intel 8086 microprocessors, which supervises a pipe-lined data compactors, and allows transfer of the compacted data via CAMAC to the host computer. The 8086's also manage the local trigger conditions and can perform some parallel processing of the data. Due to the scale of the system and multiplicity of identical channels, semi-custom gate array chips are used for much of the logic, utilizing 2.5 micron CMOS technology.
- Research Organization:
- Argonne National Laboratory, Argonne, IL
- OSTI ID:
- 5948230
- Report Number(s):
- CONF-850579-
- Journal Information:
- IEEE Trans. Nucl. Sci.; (United States), Journal Name: IEEE Trans. Nucl. Sci.; (United States) Vol. NS-32:4; ISSN IETNA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
ACCELERATOR FACILITIES
ANALOG-TO-DIGITAL CONVERTERS
ARCHITECTURE
ARRAY PROCESSORS
CAMAC SYSTEM
COMPUTERS
DATA ACQUISITION
DATA ACQUISITION SYSTEMS
DATA PROCESSING
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
EQUIPMENT
LOGIC CIRCUITS
MEMORY DEVICES
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
NUCLEAR INSTRUMENT MODULES
PARALLEL PROCESSING
PROCESSING
PROGRAMMING
READOUT SYSTEMS