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Proceedings Paper

Super-characteristic x-ray generator utilizing a pipe and rod target
Author(s): Eiichi Sato; Etsuro Tanaka; Hidezo Mori; Toshiaki Kawai; Takashi Inoue; Akira Ogawa; Mitsuru Izumisawa; Kiyomi Takahashi; Shigehiro Sato; Toshio Ichimaru; Kazuyoshi Takayama
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Paper Abstract

This generator consists of the following components: a constant high-voltage power supply, a filament power supply, a turbomolecular pump, and an x-ray tube. The x-ray tube is a demountable diode which is connected to the turbomolecular pump and consists of the following major devices: a tungsten hairpin cathode (filament), a focusing (Wehnelt) electrode, a polyethylene terephthalate x-ray window 0.25 mm in thickness, a stainless-steel tube body, a pipe target, and a rod target. The pipe and rod targets are useful for forming linear and cone beams, respectively. In the x-ray tube, the positive high voltage is applied to the anode (target) electrode, and the cathode is connected to the tube body (ground potential). In this experiment, the tube voltage applied was from12 to 20 kV, and the tube current was regulated to within 0.10 mA by the filament temperature. The exposure time is controlled in order to obtain optimum x-ray intensity. The electron beams from the cathode are converged to the target by the focusing electrode, and clean K-series characteristic x-rays are produced through the focusing electrode without using a filter. The x-ray intensities of the pipe and rod targets were 1.29 and 4.28 μGy/s at 1.0 m from the x-ray source with a tube voltage of 15 kV and a tube current of 0.10 mA, and quasi-monochromatic radiography was performed using a computed radiography system.

Paper Details

Date Published: 11 September 2006
PDF: 6 pages
Proc. SPIE 6319, Hard X-Ray and Gamma-Ray Detector Physics and Penetrating Radiation Systems VIII, 63190Q (11 September 2006); doi: 10.1117/12.679243
Show Author Affiliations
Eiichi Sato, Iwate Medical Univ. (Japan)
Etsuro Tanaka, Tokyo Univ. of Agriculture (Japan)
Hidezo Mori, Iwate Medical Univ. (Japan)
Toshiaki Kawai, Hamamatsu Photonics K.K. (Japan)
Takashi Inoue, Iwate Medical Univ. (Japan)
Akira Ogawa, Iwate Medical Univ. (Japan)
Mitsuru Izumisawa, Iwate Medical Univ. (Japan)
Kiyomi Takahashi, Iwate Medical Univ. (Japan)
Shigehiro Sato, Iwate Medical Univ. (Japan)
Toshio Ichimaru, Hirosaki Univ. (Japan)
Kazuyoshi Takayama, Tohoku Univ. (Japan)


Published in SPIE Proceedings Vol. 6319:
Hard X-Ray and Gamma-Ray Detector Physics and Penetrating Radiation Systems VIII
F. Patrick Doty; Larry A. Franks; Arnold Burger; H. Bradford Barber; Hans Roehrig; Ralph B. James, Editor(s)

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