F. Gougnaud, R. Azoulay, P. Deck, E. Delagnes, A. Lotode, Y. Queinec (CEA/Saclay, DAPNIA), H. Ren (Institute of High Energy Physics at Beijing)
A new spectrometer is being built for the COMPASS particle physics experiment at CERN. Saclay is in charge of the construction and the operation of two types of gaseous detectors : Micromegas microstrip detectors and drift chambers , . The operation of the detectors requires the slow control of high voltages and currents, and of the thresholds for the Front-End. This control system has been implemented using the Experimental Physics and Industrial Control System (EPICS) software tool kit. For the high voltages, the system CAEN SY 127 was chosen and has been controlled since March 2000. For the thresholds of the Micromegas chambers, specific VME hardware has been carried out and a JAVA graphical interface has been developed to configure and monitor the thresholds.
 COMPASS Proposal, CERN/SPSLC/P297,March 1,1996
 Micromegas as a large microstrip detector for the COMPASS experiment D. Thers, submitted to NIM A (2000)
Last updated: September 13, 2002
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