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A 3-D Track-Finding Processor for the CMS Level-1 Muon Trigger | | D.Acosta
; V.Golovtsov
; M.Kan
; A.Madorsky
; B.Scurlock
; H.Stoeck
; L.Uvarov
; S.M.Wang
; | | Date: |
14 Jun 2003 | | Subject: | Instrumentation and Detectors | physics.ins-det | | Abstract: | We report on the design and test results of a prototype processor for the CMS Level-1 trigger that performs 3-D track reconstruction and measurement from data recorded by the cathode strip chambers of the endcap muon system. The tracking algorithms are written in C++ using a class library we developed that facilitates automatic conversion to Verilog. The code is synthesized into firmware for field-programmable gate-arrays from the Xilinx Virtex-II series. A second-generation prototype has been developed and is currently under test. It performs regional track-finding in a 60 degree azimuthal sector and accepts 3 GB/s of input data synchronously with the 40 MHz beam crossing frequency. The latency of the track-finding algorithms is expected to be 250 ns, including geometrical alignment correction of incoming track segments and a final momentum assignment based on the muon trajectory in the non-uniform magnetic field in the CMS endcaps. | | Source: | arXiv, physics/0306117 | | Services: | Forum | Review | PDF | Favorites | |
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