Maintenance; Cleaning; Chemicals For Cleaning; Cleaning The X-Ray Detector - Varex Imaging PaxScan 1313DXT-I Manual

11.0

Maintenance

In principle, the detector assembly is maintenance-free; however, it is important that all
correction files are regularly updated and used for image processing. In some applications, it is
advantageous to update the offset correction file directly before each image.
Although the a-Si detectors are resistant to X-rays, they can exhibit degradation over time when
exposed to high X-ray dose environments. Sensitivity and uniformity may change depending on
the weekly exposure duration and X-ray dose. Therefore, the pixel correction files should be
checked and compared regularly to determine changes in bad pixels and clusters.
11.1

Cleaning

The detector and connected cables are likely to be contaminated during use. The specific
material most likely to become contaminated is the X-ray grade carbon fiber input window and
housing.
When the detector system is going to be cleaned, be sure to power down
the X-ray detector and unplug the cables. Ignoring this warning may
WARNING
result in explosion, fire, or electrical shock, which may result in severe
personal injury, death, or substantial product damage.
11.1.1

Chemicals for Cleaning

All chemicals listed below are approved for use can be used for cleaning device surfaces. To
achieve full cleaning results, perform the procedures in
•
Mild Soap and Water
Do not use flowing liquid or immerse the detector. Doing so will short out
Caution
the electronics in the detector and destroy the device.
Do not sterilize the detector, doing so can permanently damage it.
Caution
11.1.2

Cleaning the X-ray Detector

To clean the X-ray detector:
Turn off the X-ray detector and detach the power and communication tethered cable, if
1
applicable.
46
1313DXT-I/1515DXT-I/2520DX-I/3030DX-I X-ray Detectors
Section 11.1.2
www.vareximaging.com
for each cleaning product.