PHENIX Drift Chamber High Voltage Control

on the web:     http://www.phenix.bnl.gov/phenix/WWW/publish/heuser/hvcontrol_dc/hv.html
  on paper:     see black folder >>Drift Chamber HV Documentation<< in the counting room


This is a collection of documents on Drift Chamber High Voltage Control and its embedding into the PHENIX High Voltage Control System. Information is provided both on Drift Chamber specific requirements, hardware and procedures, and the handling of the PHENIX High Voltage Control System itself. Links to a variety of manuals, technical writeups, tricks and graphics are combined on this page.
A brief introductory tutorial addresses to non-experts who wish to quickly learn about High Voltage Control and how to perform basic steps. More technical and detailed documents proved to be very useful during the development and setup of the Control System and can help to approach more sophisticated problems and questions. Needless to mention that the pages are going to have to be updated from time to time ...

For questions, comments, suggestions please e-mail to:   Johann.Heuser@sunysb.edu


  Brief Overview: How to use the Control System

  Drift Chamber High Voltage Requirements

1. Drift Chamber specific information on high voltage supply and safe detector operation
2. Drift Chamber wire arrangement I
3. Drift Chamber wire arrangement II
4. Schematic layout of a drift cell
  LeCroy High Voltage Supplies

1. LeCroy 1450 Modular High Voltage System
2. Drift Chamber Cathode Voltage Supply: LeCroy 1471N
3. Drift Chamber Potential, Gate, Backdrift Voltage Supply: LeCroy 1469N
  High Voltage Control in the Drift Chamber Assembly Laboratory

1. High Voltage Control System at Stony Brook
2. High Voltage Conditioning of the East Arm Drift Chamber   (11/1999)
3. High Voltage Settings during Cosmics Data Taking; East Arm Drift Chamber   (12/1999)
  High Voltage Control in the PHENIX Online Computing Environment

1. PHENIX High Voltage Control Manual
2. PHENIX High Voltage Operation Manual
3. Overview: PHENIX High Voltage Mainframes and Controllers
4. The Revised Structure of the PHENIX High Voltage Control Area:
    How to set up and configure the system   (March 10, 2000)
5. The new Makefile
  6. MEDM Reference Manual
7. Backup-And-Restore-Tool
8. Alarm Handler User Guide
  9. Main High Voltage Control Panel and Alarm Handler
10. Drift Chamber Voltage/Current/Trip Recovery Control Panels
11. Drift Chamber Control Parameters Panel
12. Tripped Drift Chamber Channel: Alarm Handler and Voltage Control Panel Display
  13. Description of important fields in the EPICS High Voltage data base record

14. How to use shell scripts from the terminal prompt on phoncs0 to set values in
      EPICS HV records, and to retrieve values from EPICS HV records
  15. EMPTY Wire Status sheet - for protocols
  16. Drift Chamber Standing Orders for PHENIX shift personnel
  17. Trip Recovery Procedure
  18. Debug Program HVCONTROL
  19. HV monitoring tools:         program and operations descriptions  
  Drift Chamber High Voltage Setup in PHENIX

1. Keystone Numbering Convention

2. Patch Panels and Cabeling Description:
                DC West North DC East North
                DC West South DC East South
                DC West CENTER
      3. Mainframe Population and Cabeling:
        layout of the splitter boxes
                Mainframe West North Mainframe East North
                Mainframe West South Mainframe East South