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User Manual, Rev 02
Rad-icon 2329 GigE Detector
Teledyne DALSA
Detector Maintenance
Before performing any of the following operations, make sure that the power to the
detector is switched OFF.
Protecting the Detector Front Cover
The front cover of the detector and should be treated with care, as scratches or debris
in this area may produce artifacts in the X-ray image.
Cleaning the Detector Body and Front Cover
The detector body and front cover can be cleaned with a mild, non-abrasive cleanser
such as isopropyl alcohol. Place a small amount of cleanser on a soft cloth and rub
gently over the detector body surface. Wipe off with a clean soft cloth. Do not use any
harsh cleansers or solvents that may damage the paint or other finishes on the
detector.
In the event of detector exposure to bio-hazardous materials, proper cleaning
procedures should be undertaken prior to removal or maintenance of the detector.
Calibration
To have the best image performance, the raw image data generated by the detector
should be corrected at the host by using a flat field (offset and gain) correction. As the
offset (dark) calibration signal depends (amongst others) on ambient temperature
conditions of the detector, it is commonly accepted good practice to generate these
calibration images frequently at times that the X-ray source is switched off. It is
recommended to re-calibrate the gain correction image at least once per year, at least
when e.g. the X-ray tube is exchanged or anything changes in the X-ray imaging
geometry (e.g. the distance between the X-ray source and the detector).
The detector can contain deviating pixels. To have the best possible image quality it is
advised to perform a defect pixel correction in the host system. It is recommended to
create a defect pixels calibration image at least every year, or more frequently in case
of heavy use.
To verify if the detector still operates according specification it is advised to measure
on regular base the following performance parameters of the detector: dark reference,
noise performance, flat field reference, saturation dose and MTF performance.
