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Proceedings Paper

Characteristics of a high-intensity plasma flash x-ray generator having a double-target radiation tube
Author(s): Eiichi Sato; Michiaki Sagae; Kei Takahashi; Teiji Oizumi; Yasuomi Hayasi; Yoshiharu Tamakawa; Toru Yanagisawa
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Paper Abstract

The radiographic characteristics of a high-intensity plasma flash x-ray generator having a solid-target (anode) radiation tube are described. This generator consisted of the following essential components; a high- voltage power supply, a low-impedance coaxial transmission line, a coaxial oil condenser of 0.2 (mu) F, a turbo-molecular pump, a thyratron pulser as a trigger device, and a flash x-ray triode having a rod-shaped long double anode; a 2.0 mm inner tungsten anode was embedded in 3.0 mm copper anode. The high-voltage condenser was charged from 40 to 60 kV by the power supply, and the electric charges in the condenser were discharged to the tube after triggering the cathode electrode. The maximum tube voltage was equivalent to the charged voltage of the main condenser, and the voltage decreased after the triggering. Both the tube voltage and the current displayed damped oscillations, and the maximum tube current was less than 20 kA. The pulse height of the flash x rays substantially increased according to increases in the charged voltage, and the x-ray durations had values of a few microseconds. The plasma x- ray source substantially grew when the charged voltage was increased. The flash x-ray spectra from the plasma x-ray source were measured by a transmission-type spectrometer having a LiF curved crystal of 0.5 mm in thickness. Compared to the intensities of copper K(alpha) 1 and K(alpha) 2 including nondiagram lines increased by using the double target.

Paper Details

Date Published: 30 May 1995
PDF: 13 pages
Proc. SPIE 2513, 21st International Congress on: High-Speed Photography and Photonics, (30 May 1995); doi: 10.1117/12.209666
Show Author Affiliations
Eiichi Sato, Iwate Medical Univ. (Japan)
Michiaki Sagae, Iwate Medical Univ. (Japan)
Kei Takahashi, Iwate Medical Univ. (Japan)
Teiji Oizumi, Iwate Medical Univ. (Japan)
Yasuomi Hayasi, Hachinohe National College of Technology (Japan)
Yoshiharu Tamakawa, Iwate Medical Univ. (Japan)
Toru Yanagisawa, Iwate Medical Univ. (Japan)

Published in SPIE Proceedings Vol. 2513:
21st International Congress on: High-Speed Photography and Photonics
Ung Kim; Joon-Sung Chang; Seung-Han Park, Editor(s)

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