Fluke Biomedical 76-903 - Manual (Page 13)

Nuclear Associates 76-903
Operators Manual
3-6
Figure 3-7.
3.4.4 Slice Continuity (Gap)
The slice contiguity can be evaluated by quick visual inspection as well as in a more precise manner.
While visualizing the steps of one slice in the image, note the locations of the
steps…especially the faint
steps. Then, repeat the same procedure viewing the next slice using a preset window. The number of
missing steps between the two adjacent images represents the gap in millimeters. It can be observed in
Figure 3-7 and Figure 3-8 that two steps are missing between the two slices, representing a 2 mm gap. A
more precise measurement can be made by plotting a graph of more than one slice on the same axis.
Figure 3-8
3.4.5 Resolution Pattern
Hole Pattern Solution Insert
The resolution insert (Figure 3-9) has 4 sets of square holes (0.5 mm, 0.75 mm, 1 mm and 2 mm
machined in an acrylic block. The spacing between the holes is the same as the size of the hole.
In filling the phantom with solution, care must be taken to avoid air bubbles becoming trapped in the
holes. This can be accomplished by squirting the solution into the holes using syringes with small
needles.