Data preprocessor and compactor for the Soudan 2 nucleon decay experiment
Conference
·
OSTI ID:6022193
This paper describes a prototype preprocessor data-compaction system for the Soudan 2 proton decay search experiment. The Soudan 2 experiment will have more than three million potential data words per event to examine, while less than one percent of these data words will have valid data for typical events. In an effort to reduce the amount of data to be stored and analyzed, a data preprocessor was developed which scans the data words. If a data word is valid (ADC count above a preset threshold), that data word is passed to the host computer for experiment monitoring and storage on magnetic tape. To obtain fast data compression, a hardware comparator is used. The hardware comparator places valid data into a FIFO (first in first out stack) where the host computer can acquire the data through CAMAC. The comparator and FIFO are controlled by a microprocessor (8086 CPU), and the microprocessor is programmed for decision-making and communication between the compactor, CAMAC, the host computer and a local terminal.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6022193
- Report Number(s):
- ANL-HEP-CP-84-77; CONF-841007-44; ON: DE85004817
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
440104* -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
645102 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALLOYS
ANALOG-TO-DIGITAL CONVERTERS
BARYONS
COMPUTERS
DATA ACQUISITION SYSTEMS
DATA PROCESSING
DECAY
DRIFT CHAMBERS
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
ELEMENTARY PARTICLES
EQUIPMENT
FERMIONS
HADRONS
IRON ALLOYS
IRON BASE ALLOYS
LIFETIME
MEASURING INSTRUMENTS
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
MULTIWIRE PROPORTIONAL CHAMBERS
NUCLEONS
PARTICLE DECAY
PROCESSING
PROPORTIONAL COUNTERS
PROTONS
RADIATION DETECTORS
STEELS
TUBES
WEAK PARTICLE DECAY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
645102 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALLOYS
ANALOG-TO-DIGITAL CONVERTERS
BARYONS
COMPUTERS
DATA ACQUISITION SYSTEMS
DATA PROCESSING
DECAY
DRIFT CHAMBERS
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
ELEMENTARY PARTICLES
EQUIPMENT
FERMIONS
HADRONS
IRON ALLOYS
IRON BASE ALLOYS
LIFETIME
MEASURING INSTRUMENTS
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
MULTIWIRE PROPORTIONAL CHAMBERS
NUCLEONS
PARTICLE DECAY
PROCESSING
PROPORTIONAL COUNTERS
PROTONS
RADIATION DETECTORS
STEELS
TUBES
WEAK PARTICLE DECAY