The scheme for the High-Voltage cabling and connections is described at the High Voltage system webpage:

http://www-d0.fnal.gov/~gregores/highVoltage.html

RC-58 cables go from the HV boards to a RC58->Reynold fan-out at the movable counting house, from there to the Reynold->RC58 fan-out at DZero, and from there to the castles.

The database with FPD specifications has been sent to Fritz Bartlet, who set up the HV control software. Those files, and the instructions on how to operate the HV software can also be found at the HIgh Voltage webpage.

Low voltages ranging from -15V to -130V with 5V step from channel to channel have been applied on the system, and read at the castles. All channels matched the voltage applied to them.

Fritz Bartlet will no longer set up our high voltage database. Since FPD shares a HV crate with calorimeter argon monitoring, we will be affected by the most recent change to calorimeter HV support. All calorimeter HV crates now obtain their database definitions from an EPICS Oracle database rather than from text-formatted generator files. The significance of this is that any future changes in our HV channel configuration must be made using the web browser interface to this Oracle database. There is a tutorial on the Oracle database system available in PowerPoint format on d0server4. The full URL is:

http://d0server1.fnal.gov/projects/Online_Computing/Tutorials/HdbTutorial.ppt

Vladimir Sirotenko, our controls liaison person, will assist us with problems; however, someone must learn how to access and modify the EPICS Oracle database. The EPICS database expert is Stan Krzywdzinski.

This text were extracted from a mail Fritz sent us.