ET system

The CODA data acquisition system has been integrated with the CEBAF Event Transfer or ET system. This allows one to copy events from the ET system for online analysis without interrupting the data flow onto disk. The Hall-B counting house has several computers dedicated for online monitoring. Primex successfully tested an et2et program which copied events from the primary data acquisition computer clon10 to a secondary machine, clon00, where online monitoring programs were run. The analysis software discussed in section 1.4.1 has been written to allow events to be read from an ET system as easily as from a file. This gives primex the flexability to run any program written for offline in an online environment.