Development of wide one-dimensional X-ray line sensor in backscatter X-ray imaging system for infrastructure inspection

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Abstract

We fabricated a wide one-dimensional X-ray line sensor in backscatter X-ray imaging system. The length and width of the sensitive area of our line sensor is 200 mm and 50 mm, respectively. By using fan-beam X-rays and scanning in the perpendicular direction to the fan-beam plane, two-dimensional backscatter X-ray images can be obtained. In basic experiments, we confirmed that an iron rod placed at the depth of, at least, 9 cm in a concrete brock can be seen by combining our line sensor and C-band linac X-ray generator.

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