“More than just Digital”
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Doc. Name: PEDRA User’s Manual/Doc. No.: PEDRA-1417M-UM
Initiate date: 2020.07.25 /Revision date: 2020.10.15 (Rev. 1)
Function test
Item
Period
Description
Power consumption
Daily
Confirm that the power operation of detector is normal.
Temperature
Daily
Check the monitoring in order to minimize the characteristic
changes of Flat panel caused by external temperature
changes.
Hard disk space
Daily
Check if the hard disk is enough to save images and allow the
consecutive shootings.
Resolution
Monthly
Confirm the resolution of the detector.
Image Acquisition Time
Monthly
Confirm the acquisition of time required to get image de-
signed with optimal specifications.
Linearity
Quarterly
Evaluate the distinct characteristics of detector through the
amount of radiation coming into Flat Panel Detector, reso-
lution and contrast of images/projections, and the unification
of noises of projection.
DQE
Quarterly
Evaluate the distinct characteristics of detector through the
amount of radiation coming into Flat Panel Detector, reso-
lution and contrast of images/projections, and the unification
of noises of projection.
MTF
Quarterly
Evaluate the distinct characteristics of detector through the
amount of radiation coming into Flat Panel Detector, reso-
lution and contrast of images/projections, and the unification
of noises of projection.
Calibration
Annually
Compensates defect pixels and calibrates pixel gain using the
installed X-ray generator and X-ray tube.
