Title :
Real-time data reorganizer for the D0 central fiber tracker trigger system at Fermilab
Author :
Rapisarda, Stefano M. ; Wilcer, Neal G. ; Olsen, Jamieson T.
Author_Institution :
Fermi Nat. Accel. Lab., USA
Abstract :
A custom digital data mixer system has been designed to reorganize, in real time, the data produced by the Fermilab D0 Scintillating Fiber Detector. The data are used for the Level 1 and Level 2 trigger decisions. The mixer system receives the data from the front-end digitization electronics over 320 low voltage differential signaling (LVDS) links running at 371 MHz. The input data are de-serialized down to 53 MHz by the LVDS receivers, clock/frame re-synchronized and multiplexed in field programmable gate arrays (FPGAs). The data are then re-serialized at 371 MHz by LVDS transmitters over 320 LVDS output links and sent to the electronics responsible for Level 1 and Level 2 trigger decisions. The data mixer system processes 311 gigabits per second of data with an input to output delay of 200 ns.
Keywords :
analogue-digital conversion; data acquisition; field programmable gate arrays; nuclear electronics; position sensitive particle detectors; readout electronics; solid scintillation detectors; timing circuits; trigger circuits; 371 MHz; 53 MHz; D0 central fiber tracker trigger system; FPGA; Fermilab; Fermilab D0 Scintillating Fiber Detector; LVDS transmitters; field programmable gate arrays; front-end digitization electronics; mixer system; output delay; real-time data reorganizer; trigger decisions; Clocks; Delay; Field programmable gate arrays; Helium; Low voltage; Optical fibers; Optical transmitters; Real time systems; Solid scintillation detectors; Switches;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2003.815163
