Kavo 3D eXam ® Operators’ Manual
K990400 16 April 2008
12-2
Conditions of Operation – 8.9 and 26.9 Second Scans
All data was acquired using Radcal Model 9010 Radiation monitor, with 10 x 5-180
chamber. The data was acquired in concentric circles of radii listed in table below
A lab head phantom was placed within the beam to act as the scattering agent. The
Survey Meter was placed at a height of 112 cm [44 in] while the mid-point of the
beam exit window was located 118 cm [46.5 in] above the floor. The detector was
in the portrait position and X-ray field was at its maximum opening.
Locations listed in the table are for 0°, 45°, 90°, 135°, 180°, 225°, 270° and 315°.
Looking out from the system 0° was located directly in front (A location).
This table consists of data gathered with the system operating at 120 kVp(eff),
5 mA with an assumed use and occupancy factor of 1 and the following parameters:
Scatter Measurements for 8.9 Second Scans
8.9 second scan using pulsed X-ray: 309 frames, 12 ms pulse width at 5 mA. Base
on this, the Estimated workload is:
10 scans per week yielding a workload of 3.1 mA-min/week
25 scans per week yielding a workload of 7.8 mA-min/week
50 scans per week yielding a workload of 15.5 mA-min/week
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