Two types of x-ray technology are used for food inspection today – single energy and dual energy. The concept that dual energy offers more accuracy and sensitivity, regardless of the application, is not true. Both types of x-ray technology have advantages. When deciding whether to opt for single energy or dual energy x-ray inspection technology for contaminant detection, manufacturers should consider the following five factors:

1. Likely contaminant(s)
2. Product
3. Packaging
4. Production speed
5. Customer specification