X-MET 8000 XRF X-ray Gun

The Hitachi X-MET 8000 is a handheld X-ray fluorescence (XRF) analyzer, commonly referred to as an XRF X-ray gun. The X-MET 8000 is classified under the Metrology and Inspection category. The instrument is supplied with a portable table or stand.^[1][2][3]

XRF analyzers operate on the principle of X-ray fluorescence. A miniature X-ray tube inside the instrument emits primary X-rays toward the sample surface. When the primary X-rays strike the sample, they cause inner-shell electrons to be ejected from atoms; as outer-shell electrons fill the vacancies, characteristic secondary (fluorescent) X-rays are emitted.

The fluorescent X-rays have energies specific to each element present in the sample. A solid-state detector, typically a silicon drift detector (SDD), collects the emitted radiation and converts it into a spectrum of energy peaks. Onboard software identifies elements and quantifies their concentration by comparing peak intensities against stored calibration curves.

In semiconductor and electronics manufacturing, handheld XRF analyzers are used in failure analysis labs, incoming quality control, and recycling operations. The instruments verify the elemental composition of incoming raw materials, such as lead frames, solder, and plating chemistries, before they enter the production line.

XRF analysis is a non-contact, non-destructive technique, making it suitable for finished components and assemblies where destructive sampling is undesirable. In a fab environment, XRF is also applied to thickness measurement of thin films and coatings, though dedicated metrology tools may be preferred for production-level repeatability.