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In page X-ray:

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  • X-ray fluorescence, a technique in which X-rays are generated within a specimen and detected. The outgoing energy of the X-ray can be used to identify the composition of the sample.[citation needed]
  • Industrial radiography uses X-rays for inspection of industrial parts, particularly welds.[citation needed]
  • Radiography of cultural objects, most often X-rays of paintings to reveal underdrawing, pentimenti alterations in the course of painting or by later restorers, and sometimes previous paintings on the support. Many pigments such as lead white show well in radiographs.[citation needed]