THE APEX PICTURE GALLERY
Click for big picture
A schematic of the APEX detector which has been designed
to search for antiproton decay at the Fermilab antiproton accumulator.
Click for big picture (Fermilab picture number 95-262).
The APEX detector is shown during installation. The large
cylinder is the APEX vacuum tank. Downstream of the tank are three planes
of counters. The scintillating fiber tracking detectors are the objects
wrapped in silver paper.
Click for big picture (Fermilab picture number 95-282).
"Just installed !" A subset of the APEX collaboration
standing in front of the newly installed detector in March 1995.
Front row: Ron Ray, Martin Hu, Mike Martens, Brent Corbin,
Steve Geer (spokesman).
Back row: Dick Gustafson, Andy Scott, William Wester.
Click for big picture (Fermilab picture number 95-266).
The back of the calorimeter seen just before the installation of
the tail catcher and muon telescope. Visible are the phototube bases, cabling,
and the beampipe which passes through the center of the calorimeter. The
silver assembly to the left of the picture is some vacuum equipment in
the beamline.
Click for big picture (Fermilab picture number 95-274).
Looking downstream just after installation of the APEX experiment.
The silver assembly at the right of the picture is some vacuum equipment
in the beamline. Just downstream of this there is a plane of veto counters
followed by the cylindrical APEX decay tank (wrapped in brown heating
blanket). Mike Martens can be seen standing in the experimental pit.
Downstream of the tank the silver wrapping that contains phototubes for
the scintillating fiber tracker can be seen.
Click for big picture (Fermilab picture number 92-442-9).
The front face of the calorimeter which is constructed from
10 x 10 cm^2 cells. The central cell is missing to enable the beampipe
to pass through the calorimeter. This picture was taken in 1992 after
installation of the APEX test experiment T861.
Click for big picture (Fermilab picture number 95-267).
Side view of the three planes of DEDX counters and
fiber trackers seen just after installation in March 1995.
The 3 upper and 3 lower phototubes are 5" tubes mounted on the
horizontal dEdx counters. The silver wrappers contain the
multianode scintillating fiber phototubes. To the left of
the picture the end of the decay tank can be seen.
Tom Armstrong is perched on the right.
Click for big picture (Fermilab picture number 92-443-2).
Steve Geer (spokesman) standing in front of the calorimeter
after installation of the T861 APEX test experiment in the
spring of 1992. The beampipe
of the antiproton accumulator can be seen passing through the
center of the calorimeter.
Click for big picture (Fermilab picture number 94-335-6).
Mike Martens standing behind the 3.7 m long APEX decay
tank, which was operated at 10^-11 Torr. Ports for r.f. coupling
loops and Ti-sublimation pumps are visible.
Click for big picture (Fermilab picture number 92-442-5).
The APEX test experiment T861 after installation in spring
1992. The antiproton accumulator beampipe is seen going through
the front face of the calorimeter. Just in front of the calorimeter
scintillation counters are seen on the left and right of the beampipe.
Further scintillation counters form a box around the beampipe at the
right of the picture.
Click for big picture (Fermilab picture number 94-348).
APEX High Vacuum Decay Tank. All Systems Go.