Architecture and development of the CDF hardware event builder

Conference · Wed Feb 01 04:00:00 EST 1989 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6285786

Shaw, T M; Booth, A W; Bowden, M; Gonzalez, H; Baker, M S; Kwarciany, R K; VanConant, R; Whitman, M J; Sinervo, P K; Ragan, K J

A hardware Event Builder (EVB) has been developed for use at the Collider Detector experiment at Fermi National Accelerator (CDF). the Event builder presently consists of five FASTBUS modules and has the task of reading out the front end scanners, reformatting the data into YBOS bank structure, and transmitting the data to a Level 3 (L3) trigger system which is composed of multiple VME processing nodes. The Event Builder receives its instructions from a VAX based Buffer Manager (BFM) program via a Unibus Processor Interface (UPI). The Buffer Manager instructs the Event Builder to read out one of the four CDF front end buffers. The Event Builder then informs the Buffer Manager when the event has been formatted and then is instructed to push it up to the L3 trigger system. Once in the L3 system, a decision is made as to whether to write the event to tape.

• Research Organization: Fermi National Accelerator Lab., Batavia, IL (US); Univ. of Pennsylvania, Philadelphia, PA (US)
• OSTI ID: 6285786
• Report Number(s): CONF-881103-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: 36:1
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
440104 -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCELERATORS
BEAMS
CDF
COLLIDING BEAMS
COMPUTER ARCHITECTURE
COMPUTER CODES
CYCLIC ACCELERATORS
DATA PROCESSING
DESIGN
FASTBUS SYSTEM
FERMILAB ACCELERATOR
IMAGE PROCESSING
IMAGE SCANNERS
MEASURING INSTRUMENTS
PROCESSING
RADIATION DETECTORS
SYNCHROTRONS