D0 data acquisition design

Conference · Thu Aug 01 00:00:00 EDT 1985 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:5948661

Cutts, D; Hoftun, J S; Johnson, C R; Trojak, T; Van Berg, R; Zeller, R T

The new generation of colliding beam experiments require new and more powerful systems for data acquisition. The D0 experiment at Fermilab's Tevatron-I employs a multi-level trigger system to reduce the primary interaction rate of 50 KHz. to an event recording rate of 1-2 Hz. We describe the D0 acquisition system, focusing primarily on the second level, which is based on a large parallel array of MicroVAX-II's. Data flows from the detector readout crates at a maximum rate of 320 Mbytes/sec into dual-port memories associated with one selected processor in which a VAXELN based program performs the filter analysis of a complete event.

• Research Organization: Physics Dept., Brown University, Providence, RI
• OSTI ID: 5948661
• 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

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
ACCELERATORS
ARRAY PROCESSORS
COMPUTERS
CYCLIC ACCELERATORS
DATA ACQUISITION
DATA ACQUISITION SYSTEMS
DEC COMPUTERS
DESIGN
DIGITAL FILTERS
ELECTRONIC CIRCUITS
FERMILAB TEVATRON
FREQUENCY RANGE
HZ RANGE
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
PARALLEL PROCESSING
PROGRAMMING
SYNCHROTRONS