On-line data analysis and monitoring for H1 drift chambers

Abstract

The on-line monitoring, slow control and calibration of the H1 central jet chamber uses a VME multiprocessor system to perform the analysis and a connected Macintosh computer as graphical interface to the operator on shift. Task of this system are: • - analysis of event data including on-line track search, • - on-line calibration from normal events and testpulse events, • - control of the high voltage and monitoring of settings and currents, • - monitoring of temperature, pressure and mixture of the chambergas. A program package is described which controls the dataflow between data aquisition, differnt VME CPUs and Macintosh. It allows to run off-line style programs for the different tasks.