system serial number
You may find your system serial number on the sticker on the left or back side panel of the x-ray cabinet. You may also find it in the documentation that came with your system. If you cannot find it, please provide as much information about your system as possible: location, model, x-ray tube type, approximate date of installation, etc.
systems from other vendors
If you own a system from a different vendor, simply provide as much information about the systems as possible: brand, model, type of x-ray tube, approximate date of installation, location, etc.