Abstract
The level-3 trigger system of the STAR experiment will in the final stage consist of a farm of 24 ALPHA/Linux processors, interconnected by SCI (Scalable Coherent Interface). The system will perform online tracking of Ntrack≥8000 tracks per event (Npoint≤45 per track). The track data will be transfered to a global level-3 CPU (expected data transfer rate ≈48 MB/s), performing online event analysis tasks (e.g. invariant mass reconstruction) with a design trigger input rate of R = 100 Hz (R = 20 Hz for a prototype system).
Original language | English |
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Pages (from-to) | 358-361 |
Number of pages | 4 |
Journal | IEEE Transactions on Nuclear Science |
Volume | 47 |
Issue number | 2 I |
DOIs | |
State | Published - 2000 |
Externally published | Yes |
Event | RT '99: 11th Conference on Real-Time (IEEE/NPSS Real-Time) - Santa Fe, NM, USA Duration: Jun 14 1999 → Jun 18 1999 |