RD21 - TEST OF A SILICON DATA-DRIVEN TRIGGER PROCESSOR

RD21 is a continuation of an R&D program to demonstrate the use of a p lanar silicon microvertex detector for triggering on the topology of h eavy flavor events in a forward hadron-collider experiment. The RD21 p roject builds upon the successful P238 test of such a detector run ver y close to the circulating beams at the SPS-Collider. The specific goa l of the RD21 project discussed here was to interface the P238 silicon system to a data-driven processor capable of performing complex calcu lations in real time and test the viability of the COBEX heavy-flavor topology trigger. We describe the processor and report on some results from a May 1994 test run.