DØ Note 1270

May, 1991

Fermilab

A TRD Trigger for the Tevatron Collider Experiment at DØ

M. Johnson, M. Martin, M. Utes

Abstract A VME-based module for use as an input to the DØ Detector Level 1.5 Trigger is described. Its main function will the confirmation of electron candidates flagged by the First Level Calorimeter Trigger using digitized data from the Transition Radiation Detector. Features of the board include the use of fast FIFOs to store incoming track coordinates, dual ported SRAM lookup tables for addressing integrated charge data and forming scalars, multiplier/accumulators for speed of calculation, and a single synchronous finite state machine to control all board operations.

Work supported by the U.S. Department of Energy under contract No. DE-AC02-76CHO3000

Published on:

" Conference Record of the 1991 IEEE Nuclear Science Symposium and Medical Imaging Conference", Vol. 1, pg.589-593