Occasionally boards will be disabled for diagnostics as well. Repair techs will use the database to find the previous history of each board, and see what has gone wrong with it before. After a repair is done, they will enter the details of what happened. This may aid in understanding the calibration of the detector. IDs are supplied either by bar-codes applied at this point.
Location is marked as whereever the board is at the moment.
The database stores the date, the operator, and a comment field for each calibration. This is complicated enough to require the Java ap to do it. Depending on the board, calibration constants may need to be changed. These changes will be done via the Java applet, where we can make sure they are all done, with compatible data. Disable a channel for a while as a diagnostic.