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Figure 3: Parallel Circular Beam (Case 2) showing the beam diameter (2 mm) measured perpendicular to the beam central axis and the directions of X, Y and Z axes. The beam is along the Z-axis

Figure 3: Parallel Circular Beam (Case 2) showing the beam diameter (2 mm) measured perpendicular to the beam central axis and the directions of X, Y and Z axes. The beam is along the Z-axis