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| The IPA process involves penetrating materials with a photon beam generated by a small linear accelerator or other techniques to create positrons, which are attracted to nano-sized defects in the material. Eventually, the positrons collide with electrons in the material and are annihilated, releasing energy in the form of gamma rays. The gamma ray energy spectrum creates a distinct and readable signature of the defects or damage present in the material. |
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| IPA can detect a wide variety of damage types in a wide variety of materials including metals, polymers, ceramics and composites. Because IPA examines materials at the atomic level, it can detect damage at its earliest stage, from initial manufacture through failure. The technology can detect damage in second-layer materials and may prove useful in determining the remaining useful life of a component. |
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