Hologic DISCOVERY A, Technical Manual

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Discovery QDR Series Technical Manual
4-5
Figure 4-4. Inserting The X-Ray Alignment Fixture
Figure 4-5. The Alignment Fixture Properly Installed
1. Start the X-Ray Survey Utility by selecting Utilities|Service Utilities|X-Ray
Survey (see “X-Ray Survey” on page 9-1 for information on the utility).
2. Set Aperture to 10, Hi gain to 2, Lo gain to 1 and X-ray Mode to 3.
3. Place the Aperture Alignment Pin through the hole in the Aperture Plate. It
should drop straight through and into the alignment hole in the Filter Drum
Assembly base plate and be perpendicular to the Aperture Plate. If it is not per-
form steps 4 through 7. Otherwise, proceed to step 8.
A
B, D
C
Fixture
C-Arm
Detector Opening
View from Front
Step A. Insert the left side of the Alignment Fixture into the left side of the
Detector Opening so that the vertical edges of the four Alignment
Pins are secure.
Step B. Compress the Holding Clamps.
Step C. Raise the right side of the Alignment Fixture into the Detector
Opening.
Step D. Release the Holding Clamps.
Note: If the Alignment Fixture is inserted with the Alignment Pins on the
right, the procedure works equally well.
Holding Clamp
Alignment Pin