The CDF experiment at the Fermilab Tevatron has been
significantly upgraded for the collider Run II, which started in March 2001
and is scheduled to last until 2006. Instantaneous luminosities of 1032
cm-2 s-1 and above are expected. A data acquisition system capable of
efficiently recording the data has been one of the most critical elements of
the upgrade. Key figures are the ability to deal with the short bunch
spacing of 132 ns, event sizes of the order of 250 kB, and permanent logging
of 20 MB/s. The design of the system and experience from the first months
of data-taking operation are discussed.
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Updated: Friday, 2001 August 17 15:38:05 CDT automatically from input from Carol Picciolo