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Eighteeth NanoPix2 - 7 Recommended X-Ray Source Parameters and Exposure Time

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7 Recommended X-ray Source Parameters and Exposure Time
Page 47 / 66
7. Recommended X-ray Source Parameters
and Exposure Time
exposure
time
Dose
(µGy)
60kVp
6mA
60kVp
2mA
65kVp
5mA
Patient
Adult
Adult
Adult
SID
28cm
28cm
28cm
Intra Oral
X-ray Unit
No filter
Approximate exposure time(second)
Incisor
&
Canine
300~500
0.12~0.2
0.1~0.2
0.18~0.28
Molar
400~600
0.16~0.25
0.15~0.25
0.24~0.34
*SID: Source to X-ray imaging sensor receptor distance.
*Make sure whether your exposure source is AC or DC.
*If your exposure source cannot trigger the sensor, you can modify the exposure
trigger threshold through software: Tools Æ Settings Æ Acquisition Æ Trigger
setting. The operation steps could refer to chapter 5.3. In our test, the exposure
source parameter used is 60kV 1mA, and its corresponding threshold is 50uGy; if
the exposure source you use is higher than this parameter, you can set the
threshold to 100uGy or 200uGy to give it a try; if the exposure source used is
lower than this parameter, you can set the threshold to 20uGy or 5uGy. The
advantage of this operation is that it can Improve image quality.
NOTE
For larger body types: increase the exposure time(or Source current) by 25%
For children(5~21age): reduce the exposure time(or Source current) by 20%
For edentulous patients: reduce the exposure time(or Source current) by 20%.

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