CBM RICH gas system was designed in 2010 and assembled in Giessen University in February 2011. It provides pure CO2 gas to the RICH prototype at the correct differential pressure (2mbar). The system operates nominally as a closed circuit gas system with the majority of gas recirculation through the prototype. The slow control for the gas system is based on single DAQ32 module.
See also assorted pictures of system assembling and tests.