摘要
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 alst until 2006,Instantaneous luminosities of 10^32cm^-2S^-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 abilitity to deal with the short bunch spacing of 132ns.event sizes of the order of 250kB,and permanent logging of 20MB/s ,The design of the system and experience from the first months of data-taking operation are discussed.
