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Neutron Radiography Expands Possibilities for Nondestructive Testing

N-ray can provide a different, and often useful, perspective from planar X-ray radiography and CT

Willow Ascenzo
Thu, 07/16/2020 - 12:03
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During the late 19th century, Wilhelm Röntgen discovered X-rays and soon after discovered their properties for medical and industrial imaging when he created a radiograph of his wife’s hand. From this discovery, the powerful tool of X-ray radiography and tomography fell into the hands of medical professionals and industrial materials professionals.

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Several decades later, during the 1930s, James Chadwick discovered the neutron, an electrically-neutral particle that resides in an atom’s nucleus. Soon afterward, the neutron was also recognized as a potential powerful tool for industrial radiography, just like X-rays.

As the technology behind X-ray imaging advanced and X-ray sources became more plentiful, X-radiography became more widely used in the field of nondestructive testing, and exhaustive quality standards were set in place to ensure that the use of this tool led to standardized and consistent results. The development of, and adherence to, these standards have helped push X-ray imaging along, leading to the development of both digital radiography, as opposed to film, and computed tomography as a powerful expansion of planar radiography into the third dimension.

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