BaBar Online Detector Control

Overview

Detector Control is that part of the Online responsible for controlling and monitoring BaBar detector hardware, archiving ambient data, and providing an interface between the data acquisition system and detector hardware via the component proxy.  In addition, detector control is responsible for communicating the status of BaBar to PEP-II, and to assist Operations by providing coherent, integrated access to the status of the detector.  The detector control infrastructure uses the Experimental Physics and Industrial Control System (EPICS), which provides an integrated software environment, including driver support for hardware readout and control, a realtime database for storing and processing data, a software bus (channel access) serving data over a local network, and UNIX client tools for accessing and displaying data.  The implementation of EPICS at BaBar follows the Standard Application Framework for EPICS (SAFE) developed at LBL by Steve Lewis.  This page contains links to documentation and other resources associated with Online Detector Control activity.  There is a Hypernews forum for discussion of issues related to detector control.
 

• General EPICS documentation
• EPICS listserver archives, including Tech-Talk
• BaBar-specific information for experts
• BaBar hardware
• How to start the EPICS  display manager
• Documentation on the Alarm Handler
• CMLOG documentation for V1.1, release notes for V2.0, and Ron MacKenzie's page

Subsystem Links

• SVT - Silicon Vertex Tracker
• DCH - Drift Chamber
• DRC - Detector of internally Reflected Cerenkov light (particle ID detector)
• EMC - ElectroMagnetic Calorimeter
• IFR - Instrumented Flux Return (muon detector)
• CEN - CENtral systems (essentially everything else)

• Using BrowserApp
• Using JavaAnalysisStudio
• Using OdcNtupleMaker
• Details about the data servers
• Ambient -> conditions data conversion

Interaction with PEP-II

• Communication path
• The injection state machine (for users and experts)

Design Documents

• Requirements
• Conceptual design and plots
• Hardware conceptual design
• Supported hardware
• BaBar - PEPII communication conceptual design, plot, and a talk by Gerry Abrams

Online Detector Control Group

• Coordinator - Steffen Luitz
• Online Releases - Eli Rosenberg
• DAQ Operations - Katherine George, Matthias Wittgen, Steffen Luitz
• ORC - Boda Franek
• ODC - Matthias Wittgen, Steffen Luitz, Sherry Chu
• ODB - Andrei Salnikov
• CMP - Matthias Wittgen, Steffen Luitz
• ODF - Chris O'Grady, Matt Weaver
• OEP/L3 - Jim Hamilton
• Subsystem Experts (C = coordinator):
  • SVT - Giovanni Calderini (C)
  • DCH - Mauro Morandin (C), Vincent Tisserand, Fulvio Galeazzi, Chris Brown, Jim Olsen
  • DRC - George Vasileiadis (C), Christophe Thiebaux
  • EMC - Tom Meyer (C), Jong I. Yi
  • IFR - Nik Sinev (C)
  • LST - Nik Sinev (C)
  • CEN - Perry Anthony (C)

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  Maintained by Online Detector Control Group.
  Last modified:  May 12, 2005.