The CDF particle detector operates in the beamline of the
Tevatron proton-antiproton collider at Fermilab, Batavia, IL. The Tevatron
is expected to undergo luminosity upgrades (Run IIb) in the future,
resulting in a higher number of interactions per beam crossing. To operate
in this dense radiation environment, an upgrade of CDF's silicon vertex
detector (SVX) subsystem and a corresponding upgrade of its VME-based DAQ
system has been explored. Prototypes of all the Run IIb SVX DAQ components
have been constructed, assembled into a test stand and operated successfully
using an adapted version of CDF's network-capable DAQ software. In
addition, a PCI-based DAQ system has been developed as a fast and
inexpensive tool for silicon detector and DAQ component testing in the
production phase. In this paper we present an overview of the Run IIb
silicon DAQ upgrade, emphasizing the new features and improvements
incorporated into the constituent VME boards, and discuss a PCI-based DAQ
system developed to facilitate production tests.
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Updated: Tuesday, 2003 December 16 18:15:51 CST automatically from input from "Carol I. Picciolo"