Vatech A9

15. Appendices
174 vatech A9 (Model name: PHT-30CSS) User Manual
15.2.3.4 CEPH Mode Results
Test Condition
Tested Mode Ceph
Distance from focal point [m] 1~2
Applied Tube Voltage Peak [kVp] 99
Applied Tube Current [mA] 10
Applied Exposure time [sec] 5.4
Since the Ion chamber is located between the generator and
the object, Data of 1 m and 1.5 m at 270 ° are not measured.
Mode
Direction [°]
Ceph Full Lateral [mR]
1 m
(3.3 ft)
1.5 m
(4.9 ft)
2 m
(6.6 ft)
0
Nose
0.027
0.015
0.012
45
0.019
0.009
0.005
90 Right ear
0.129
0.079
0.036
135
0.167 0.102 0.042
180
Occiput
0.026
0.010
0.004
225
0.025
0.016
0.027
270 Left ear
-
-
0.097
315
0.038 0.036 0.022