User's Manual

“More than just Digital” Page 55 of 81
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.