10 February 2009 Ultra-high-speed embossed radiography system
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Proceedings Volume 7126, 28th International Congress on High-Speed Imaging and Photonics; 71261I (2009) https://doi.org/10.1117/12.823075
Event: 28th International Congress on High-Speed Imaging and Photonics, 2008, Canberra, Australia
Abstract
Embossed radiography is an important technique for imaging target region by decreasing absorption contrast of objects. The ultra-high-speed embossed radiography system consists of a computed radiography system, an intense flash x-ray generator, and a computer program for shifting the image pixel. In the flash x-ray generator, a high-voltage condenser of 200 nF was charged to 50 kV, and the electric charges in the condenser were discharged to the flash x-ray tube after triggering the cathode electrode. The molybdenum-target evaporation lead to the formation of weakly ionized linear plasma, and intense molybdenum K-series x-rays were produced. High-speed radiography was performed using molybdenum K-rays, and the embossed radiography was carried out utilizing single-energy subtraction after the image shifting. The minimum spatial resolution was equal to the sampling pitch of the CR system of 87.5 μm, and concavoconvex radiography such as phase-differential imaging was performed with an x-ray duration of approximately 0.5 Μs.
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Eiichi Sato, Eiichi Sato, Purkhet Abderyim, Purkhet Abderyim, Akihiro Osawa, Akihiro Osawa, Toshiyuki Enomoto, Toshiyuki Enomoto, Etsuro Tanaka, Etsuro Tanaka, Koetsu Sato, Koetsu Sato, Mitsuru Izumisawa, Mitsuru Izumisawa, Akira Ogawa, Akira Ogawa, Shigehiro Sato, Shigehiro Sato, Kazuyoshi Takayama, Kazuyoshi Takayama, } "Ultra-high-speed embossed radiography system", Proc. SPIE 7126, 28th International Congress on High-Speed Imaging and Photonics, 71261I (10 February 2009); doi: 10.1117/12.823075; https://doi.org/10.1117/12.823075
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