Published November 15, 1990
| Version v1
Journal article
Software trigger for the TOPAZ detector at TRISTAN
Creators
- 1. National Lab. for High Energy Physics, Oho, Ibaraki (Japan)
Description
A new software trigger system was developed and installed at the TOPAZ detector to the trigger system for the TRISTAN e+e- collider to take data efficiently in the scheduled high luminosity experiment. This software trigger requires two or more charged tracks originated at the interaction point by examining the timing of signals from the time projection chamber. To execute the vertex finding very quickly, four microprocessors are used in parallel. By this new trigger the rate of the track trigger was reduced down to 30-40% with very small inefficiency. The additional dead time by this trigger is negligible. (orig.)
Additional details
Publishing Information
- Journal Title
- Nuclear Instruments and Methods in Physics Research, Section A
- Journal Volume
- 297
- Journal Issue
- 1/2
- Series
- Nucl. Instrum. Methods Phys. Res., Sect. A.
- Journal Page Range
- 148-152
- ISSN
- 0168-9002
- CODEN
- NIMAE
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 22035148
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- COMPUTER CODES; COMPUTER NETWORKS; DEAD TIME; FASTBUS SYSTEM; MICROPROCESSORS; PARALLEL PROCESSING; PARTICLE TRACKS; PROJECTION SPARK CHAMBERS; SYNCHRONIZATION; TRIGGER CIRCUITS; TRISTAN STORAGE RINGS
- Descriptors DEC
- ELECTRONIC CIRCUITS; GAS TRACK DETECTORS; MEASURING INSTRUMENTS; MICROELECTRONIC CIRCUITS; PROGRAMMING; PULSE CIRCUITS; RADIATION DETECTORS; SPARK CHAMBERS; STORAGE RINGS; TIMING PROPERTIES