This paper presents a versatile experimental and educational module, which can be used both for prototyping of embedded PC based electronic devices, and for teaching of computer engineering. The FPGA chip may be used to implement or to emulate wide range of hardware devices, while the embedded PC, able to run the Linux OS, provides an efficient environment for controlling this hardware using different techniques.
This paper presents readout for RPC based muon trigger system, part of CMS experiment on LHC collider at CERN (Geneva). All RPC data used to perform trigger algorithm are collected on RPC trigger boards of and send to general CMS data acquisition system. Zero suppression used to transfer data from detector to control room is used to decrease the amount the links and data to be stored.
Perhaps the most powerful cosmic processes ever observed are gamma ray bursts (GRB). So far, phenomena responsible for GRB have not been unambiguously identified. In the present paper we propose an approach completely different from the classical one. It employs experimental techniques developed for particle physics. Presented project is pioneering research in the unexplored so far domain of cosmic phenomena on the time scale of seconds. Both the rate of signal in question and the rate of unexpected background are not known. Therefore we decided to divide the project into two phases: phase I -- two CCD cameras, phase II - a system of cameras covering all sky. The phase I is well defined whereas detailed realization of phase II will depend strongly on results and experience gained in phase I.