Ultra-high-speed embossed radiography system

Eiichi Sato; Purkhet Abderyim; Akihiro Osawa; Toshiyuki Enomoto; Etsuro Tanaka; Koetsu Sato; Mitsuru Izumisawa; Akira Ogawa; Shigehiro Sato; Kazuyoshi Takayama

doi:10.1117/12.823075

10 February 2009 Ultra-high-speed embossed radiography system

Eiichi Sato, Purkhet Abderyim, Akihiro Osawa, Toshiyuki Enomoto, Etsuro Tanaka, Koetsu Sato, Mitsuru Izumisawa, Akira Ogawa, Shigehiro Sato, Kazuyoshi Takayama

Author Affiliations +

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, Purkhet Abderyim, Akihiro Osawa, Toshiyuki Enomoto, Etsuro Tanaka, Koetsu Sato, Mitsuru Izumisawa, Akira Ogawa, Shigehiro Sato, and Kazuyoshi Takayama "Ultra-high-speed embossed radiography system", Proc. SPIE 7126, 28th International Congress on High-Speed Imaging and Photonics, 71261I (10 February 2009); https://doi.org/10.1117/12.823075

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