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Film photon (x-ray or gamma-ray) radiography is used in numerous industrial applications: for inspecting welds in fabricated structures and in pressure vessels, establishing the soundness of cast products, and for the detection of flaws, void spaces and inclusions. In welds, radiography can detect hot tears, shrinkage cracks, trapped gas (blowholes), slag inclusions, lack of fusion, and lack of penetration. In castings, pipe (round cavities at center of an end surface), shrinkage, hot tears, blowholes and sand or slag inclusions may be detected .
KeywordsNeutron Radiography Beta Emitter Neutron Tomography Cargo Container Fluorescent Screen
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