CLAS Drift Chamber Support Page

CLAS GAS

The CLAS (CEBAF Large Acceptance Spectrometer), located in Experimental
Hall B at TJNAF (Thomas Jefferson National Accelerator Facility), uses
large gas filled detectors. These detectors require a continuous supply
of pure gas to operate. The CLAS DC GAS and Cerenkov Gas systems deliver
this gas to the detectors.

The following files are in .PDF format

THE CLAS DC GAS SYSTEM

• The DC Gas System Controls Diagram
• The DC Gas System Piping Diagram
• The DC Gas System Operators Manual

THE Cerenkov GAS SYSTEM

• The Cerenkov Gas System Controls Diagram
• The Cerenkov Gas System Piping Diagram
• The Cerenkov Gas System Operators Manual

Factory Manuals for Process Controls

• MKS Type 647B Multi Gas Controller manual (DCGAS Mixing and Flow control, CERGAS Flow Controls))
• MKS Type 146C controller manual (DC Pressure Controller)
• MKS Type 250 controller manual (CERGAS Pressure Control)
• MKS Type 651C controller manual (CERGAS Pressure Control (spare))
• Panametrics user manual for the Moisture Image Series I Hygrometer system (DCGAS)
• Panametrics user manual for the Moisture Monitor Series 3 Hygrometer system (HYCAL)
• OMEGA DP25E process controller manual (DCGAS and CERGAS Safety Systems controls, readouts, and alarms)

CLAS DC Fabrication, Installation, and Repair Page Links

• The CLAS12 Region 1 Prototype Work
• The Summer 2006 CLAS DC Repair Period Page
• The September 2005 CLAS DC Repair Period Page
• The September 2005 CLAS Region 1 DC Repairs Page
• The September 2005 CLAS Region 2 DC Repairs Page
• The September 2005 CLAS Region 3 DC Repairs Page
• The August 2004 CLAS DC Repair Period Page
• The August 2004 CLAS Region 2 DC Repairs Page
• The August 2004 CLAS Region 3 DC Repairs Page
• Pics of Corrosion on the Region 3 pre-amps
• CLAS DC Fabrication and Installation Photos (~1991-1996)

Experimental Hall B links

• Experimental Hall B Main Page
• CLAS Drift Chambers
• Cerenkov Detectors
• HALL B Picture Gallery
• Jefferson Lab Home Page
• Hall B Epics
• Hall B Engineering

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THIS PAGE WILL ALWAYS BE UNDER CONSTRUCTION -Last Update on 11-05-09