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Proceedings Paper

Ultra-high-speed embossed radiography system
Author(s): Eiichi Sato; Purkhet Abderyim; Akihiro Osawa; Toshiyuki Enomoto; Etsuro Tanaka; Koetsu Sato; Mitsuru Izumisawa; Akira Ogawa; Shigehiro Sato; Kazuyoshi Takayama
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Paper 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.

Paper Details

Date Published: 10 February 2009
PDF: 8 pages
Proc. SPIE 7126, 28th International Congress on High-Speed Imaging and Photonics, 71261I (10 February 2009); doi: 10.1117/12.823075
Show Author Affiliations
Eiichi Sato, Iwate Medical Univ. (Japan)
Purkhet Abderyim, Iwate Univ. (Japan)
Akihiro Osawa, Toho Univ. School of Medicine (Japan)
Toshiyuki Enomoto, Toho Univ. School of Medicine (Japan)
Etsuro Tanaka, Tokyo Univ. of Agriculture (Japan)
Koetsu Sato, Toreck, Inc. (Japan)
Mitsuru Izumisawa, Iwate Medical Univ. (Japan)
Akira Ogawa, Iwate Medical Univ. (Japan)
Shigehiro Sato, Iwate Medical Univ. (Japan)
Kazuyoshi Takayama, Tohoku Univ. (Japan)


Published in SPIE Proceedings Vol. 7126:
28th International Congress on High-Speed Imaging and Photonics
Harald Kleine; Martha Patricia Butron Guillen, Editor(s)

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