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Proceedings Paper

Extremely soft x-ray generator and its applications
Author(s): Eiichi Sato; Fumiko Obata; Kiyomi Takahashi; Shigehiro Sato; Etsuro Tanaka; Hidezo Mori; Toshiaki Kawai; Toshio Ichimaru; Kazuyoshi Takayama; Hideaki Ido
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Paper Abstract

The development of an extremely soft x-ray generator with a tungsten-target tube and its applications to radiography and disinfection are described. This generator consists of a high-voltage power supply, a filament power supply, and an x-ray tube. Negative high voltages are applied to the cathode electrode in the x-ray tube, and the tube voltage and current are regulated by the input of a transformer and the filament voltage, respectively. The x-ray tube is a glass-enclosed double-focus diode with a tungsten target and a 0.2 mm-thick beryllium window. The maximum tube voltage and electric power were 60 kV and 400 W, respectively. The focal-spot sizes were 4×4 (large) and 1×1 mm (small), respectively. Extremely soft radiography was performed with a computed radiography system, and we observed fine blood vessels of about 100 μm with high contrasts. Using this generator, we performed the disinfection achieved with extremely soft x rays.

Paper Details

Date Published: 3 November 2004
PDF: 7 pages
Proc. SPIE 5537, X-Ray Sources and Optics, (3 November 2004); doi: 10.1117/12.560551
Show Author Affiliations
Eiichi Sato, Iwate Medical Univ. (Japan)
Fumiko Obata, Iwate Medical Univ. (Japan)
Kiyomi Takahashi, Iwate Medical Univ. (Japan)
Shigehiro Sato, Iwate Medical Univ. (Japan)
Etsuro Tanaka, Tokyo Univ. of Agriculture (Japan)
Hidezo Mori, National Cardiovascular Ctr. Research Institute (Japan)
Toshiaki Kawai, Hamamatsu Photonics Inc. (Japan)
Toshio Ichimaru, Hirosaki Univ. (Japan)
Kazuyoshi Takayama, Tohoku Univ. (Japan)
Hideaki Ido, Tohoku Gakuin Univ. (Japan)


Published in SPIE Proceedings Vol. 5537:
X-Ray Sources and Optics
Carolyn A. MacDonald; Albert T. Macrander; Tetsuya Ishikawa; Christian Morawe; James L. Wood, Editor(s)

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