CDF Preliminary Hazard Assessment for Run IIb

CDF Hazard Assessment of SVX2B

1.  Mechanical System -- This represents the new detector, and the parts
    within the tracking volume.

    a.  Mechanical Hazards: The system will cost over \$100,000. This
        hazard will be handled procedurally. That is, procedures will be
        implemented to assure safe handling of the detector and its
        components during construction and installation.

    b.  Fire Hazards: There will be cables and epoxy used in the
        construction. A review of cable specifications will be made
        before purchase or installation of cables.

    c.  Toxic Materials: The beam pipe will be made of beryllium. No
        machining of beryllium will be performed at Fermilab. All
        beryllium will be passivated, and handled only by people trained
        in beryllium handling procedures.

2.  Power Supply -- This represents the power supplies used to provide
    bias voltage to the silicon sensors.

    a.  Mechanical Hazards: The system will cost over \$100,000. This
        will be mounted in the existing relay racks, and will be
        protected by the collision hall safety systems.

    b.  Fire Hazards: The system will contain standard electrical
        components. The system will be commercially built, and will be
        fused to prevent overheating.

    c.  Toxic Materials: Standard materials used in circuit board
        construction will be present. As above, the fire and mechanical
        protection will assure the integrity of the supplies.

3.  Cabling -- This covers the front end cables, that connect the
    detector to the data acquisition and power supplies.

    a.  Electrical Hazards: Both high current and high voltage will be
        carried in these cables. A cable and electrical review will
        assure that the cables cannot be driven at to high a voltage or
        current.

    b.  Fire Hazards: Cables will be bundled in large quantities. The
        load limits (above) and collision hall fire detection system
        will protect against fire.

    c.  Toxic Materials: Standard materials used in cable construction
        will be present. . As above, the fire and electrical protection
        will assure the integrity of the cables.

CDF Hazard Assessment of CPR2B

1.  Detector System -- This represents the detector elements, located on
    the calorimeter front face.

    a.  Mechanical Hazards: The system will cost over \$100,000. This
        hazard will be handled procedurally. That is, procedures will be
        implemented to assure safe handling of the detector and its
        components during construction and installation.

    b.  Fire Hazards/Toxic materials: Approximately 500 kg of
        scintillator will be contained in the system. No electrical
        apparatus operates on the scintillator. The collision hall fire
        protection system will monitor this system.

2.  Phototube enclosures -- These are the boxes that hold the
    phototubes, and are mounted on the back sides of the calorimeter
    wedges.

    a.  Mechanical Hazards: The system will cost over \$100,000. . This
        hazard will be handled procedurally. That is, procedures will be
        implemented to assure safe handling of the detector and its
        components during construction and installation.

    b.  Electrical Hazards: High voltage will be present within the
        enclosure. Connections and cabling will be reviewed to control
        the hazards. Proper procedures will be implemented for
        operations, such as lock out-tag out procedures for sources of
        high voltage.