EPICS Home Page at Jefferson Lab

Experimental Physics and Industrial Control System (EPICS) is a set of software tools and applications cooperatively developed by Los Alamos National Laboratory (LANL), Argonne National Laboratory (ANL), Thomas Jefferson National Accelerator Facility (formerly CEBAF), Lawrence Berkeley Laboratory (LBL), Brookhaven National Laboratory (BNL), Deutsches Elektronen-Synchrotron (DESY) and many others.  For more information about EPICS, visit the epics integration site.

The EPICS Control System at Jefferson Lab

<>The accelerator control system is maintained by the controls software group, part of the operations department

<>The controls software group has developed an EPICS archiver, called CZAR, which advances the state of the art in archived data acqusition and storage for EPICS.  The archive engine runs on a Linux-based system with dual 2.4 Xeon processors, 12 GB of memory and 1.7 TB of raid disk space. It is currently used to monitor more than 30,000 channels, and consumes roughly 30% of one of the CPUs. The 1.7 TB of disk space enables users to have ready access to the last 2 years of data, with more available on off-line storage if needed. Users are able to retrieve from the archive any channel's data in the 2 year time range, with retrieval time taking approximately 1 second for each day's worth of data returned (which can be as much as 86,000 timestamp/value pairs). 


Modified on November 16, 2004; Maintained by Matt Bickley