Dual-energy flash x-ray generator

Eiichi Sato; Michiaki Sagae; Kei Takahashi; Arimitsu Shikoda; Teiji Oizumi; Hidenori Ojima; Kazuyoshi Takayama; Yoshiharu Tamakawa; Toru Yanagisawa; Akihiro Fujiwara; Kanji Mitoya

doi:10.1117/12.209670

30 May 1995 Dual-energy flash x-ray generator

Eiichi Sato, Michiaki Sagae, Kei Takahashi, Arimitsu Shikoda, Teiji Oizumi, Hidenori Ojima, Kazuyoshi Takayama, Yoshiharu Tamakawa, Toru Yanagisawa, Akihiro Fujiwara, Kanji Mitoya

Author Affiliations +

Proceedings Volume 2513, 21st International Congress on: High-Speed Photography and Photonics; (1995) https://doi.org/10.1117/12.209670
Event: High-Speed Photography and Photonics: 21st International Congress, 1994, Taejon, Korea, Republic of

Abstract

The fundamental studies on a dual-energy flash x-ray generator for performing the energy-selective two-direction radiography are described. This generator consisted of the following components: a negative high- voltage power supply, a polarity-inversion-type high-voltage pulser having a 5 nF combined ceramic condenser, a turbo molecular pump, and two flash x-ray tubes. The condenser in the pulser was charged from -60 to -80 kV, and the electric charges in the condenser were discharged to two x-ray tubes. The maximum output voltage from the pulser was about -1.5 times the charged voltage because the cable transmission line was employed. Using a tube, the maximum tube voltage was about 110 kV. The maximum tube current and the x-ray intensity were less than 3 kA and 5 (mu) C/kg at 0.5 m per pulse, respectively. In contrast, the tube current and the intensity has approximately half the above values when two tubes were employed. The pulse widths were less than 200 ns, and two shots of flash x rays were obtained simultaneously. Each photon energy of flash x rays can be changed by controlling the space between the anode and cathode electrodes.

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Eiichi Sato, Michiaki Sagae, Kei Takahashi, Arimitsu Shikoda, Teiji Oizumi, Hidenori Ojima, Kazuyoshi Takayama, Yoshiharu Tamakawa, Toru Yanagisawa, Akihiro Fujiwara, and Kanji Mitoya "Dual-energy flash x-ray generator", Proc. SPIE 2513, 21st International Congress on: High-Speed Photography and Photonics, (30 May 1995); https://doi.org/10.1117/12.209670

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