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Proceedings Paper

Kilohertz-range flash x-ray generator utilizing a hot-cathode triode
Author(s): Eiichi Sato; Michiaki Sagae; Arimitsu Shikoda; Teiji Oizumi; Hiroyasu Arima; Kei Takahashi; Akihiro Fujiwara; Kanji Mitoya; Yoshiharu Tamakawa; Toru Yanagisawa
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Paper Abstract

The construction and the fundamental studies of a kilohertz-range flash x-ray generator utilizing a hot-cathode triode for high-speed radiography are described. This generator consisted of the following components: a constant high-voltage power supply, an energy- storage main condenser of 97 nF, a grid pulser, and an x-ray tube. The x-ray tube was of an enclosed-triode type and was composed of the following major parts: an anode rod made of copper, a plane anode tip (target) made of tungsten, a focusing electrode made of iron, a hot cathode (filament) made from a tungsten wire, a tungsten grid, and a glass tube body. The main condenser was charged from 50 to 70 kV, and the electric charges in the condenser were discharged repetitively by the grid pulser. The temperature of the cathode was about 2,000 K, and the cathode current was primarily controlled by the grid voltage at a constant filament temperature. The pulse width was less than 2 microsecond(s) , and the maximum repetition rate was about 30 kHz. The x-ray intensity was 67.3 nC/kg at 0.5 m per pulse with a peak grid voltage of 1.2 kV and a charged voltage of main condenser of 70 kV.

Paper Details

Date Published: 11 October 1993
PDF: 11 pages
Proc. SPIE 2002, Ultrahigh- and High-Speed Photography, Videography, and Photonics '93, (11 October 1993); doi: 10.1117/12.161359
Show Author Affiliations
Eiichi Sato, Iwate Medical Univ. (Japan)
Michiaki Sagae, Iwate Medical Univ. (Japan)
Arimitsu Shikoda, Iwate Medical Univ. (Japan)
Teiji Oizumi, Iwate Medical Univ. (Japan)
Hiroyasu Arima, Tohoku Univ. Hospital (Japan)
Kei Takahashi, Iwate Medical Univ. (Japan)
Akihiro Fujiwara, Japan Mechaelectric Inc. (Japan)
Kanji Mitoya, Japan Mechaelectric Inc. (Japan)
Yoshiharu Tamakawa, Iwate Medical Univ. (Japan)
Toru Yanagisawa, Iwate Medical Univ. (Japan)

Published in SPIE Proceedings Vol. 2002:
Ultrahigh- and High-Speed Photography, Videography, and Photonics '93
Paul W. Roehrenbeck, Editor(s)

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