Characteristics of a high-intensity plasma flash x-ray generator having a double-target radiation tube

Eiichi Sato; Michiaki Sagae; Kei Takahashi; Teiji Oizumi; Yasuomi Hayasi; Yoshiharu Tamakawa; Toru Yanagisawa

doi:10.1117/12.209666

30 May 1995 Characteristics of a high-intensity plasma flash x-ray generator having a double-target radiation tube

Eiichi Sato, Michiaki Sagae, Kei Takahashi, Teiji Oizumi, Yasuomi Hayasi, Yoshiharu Tamakawa, Toru Yanagisawa

Proceedings Volume 2513, 21st International Congress on: High-Speed Photography and Photonics; (1995) https://doi.org/10.1117/12.209666
Event: High-Speed Photography and Photonics: 21st International Congress, 1994, Taejon, Korea, Republic of

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.

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Eiichi Sato, Michiaki Sagae, Kei Takahashi, Teiji Oizumi, Yasuomi Hayasi, Yoshiharu Tamakawa, and Toru Yanagisawa "Characteristics of a high-intensity plasma flash x-ray generator having a double-target radiation tube", Proc. SPIE 2513, 21st International Congress on: High-Speed Photography and Photonics, (30 May 1995); https://doi.org/10.1117/12.209666

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