The eXtremely Fast Tracker, or XFT, is a processor designed to identify and measure the momentum of charged particles produced in proton antiproton collisions at the CDF Detector at the Fermi National Laboratory, in Batavia, Illinois.
The
XFT TDC mezzanine Card(XTC)
classifies wire hits in the Central Outer Tracker
(COT) as either
prompt or delayed.
Using patterns of prompt and delayed hits sent from
the XTC, the
Finder Module identifies track stubs, or pixels, in the COT axial superlayers.
The Linker Module
finds tracks by "linking" patterns of pixels together using three
(if the 3rd axial layer has a pixel) or four COT axial superlayers.
The "best transverse momentum" and phi of that track is sent on to the XTRP
system.
The
XTRP System
sends the tracking information to the Level 1 Calorimetry and Level 1 Muon triggers.
Tracks are also put into a pipeline, and upon a Level 1 accept, are sent to the Level
2 processor and on to the Silicon Vertex Trigger
(SVT).
