17 March 2005 Monochromatic flash x-ray generator utilizing copper-target diode
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Proceedings Volume 5580, 26th International Congress on High-Speed Photography and Photonics; (2005) https://doi.org/10.1117/12.567585
Event: 26th International Congress on High-Speed Photography and Photonics, 2004, Alexandria, Virginia, United States
Abstract
High-voltage condensers in a polarity-inversion two-stage Marx surge generator are charged from -50 to -70 kV using a power supply, and the electric charges in the condensers are discharged to an x-ray tube after closing the gap switches in the surge generator using a trigger device. The x-ray tube is a demountable diode, and the turbomolecular pump evacuates air from the tube with a pressure of approximately 1 mPa. Clean copper Kα lines are produced using a 10-μm-thick nickel filter, since the tube utilizes a disk cathode and a rod target, and bremsstrahlung rays are not emitted in the opposite direction to that of electron acceleration. The peak tube voltage increased with increasing charging voltage. At a charging voltage of -70 kV, the peak tube voltage and current were 140 kV and 0.8 kA, respectively. The pulse widths were approximately 30 ns, and the maximum dimension of the x-ray source was 3.0 mm in diameter. The number of generator-produced Kα photons was approximately 2.5x106 photons/cm2 at 0.5 m per pulse.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Eiichi Sato, Eiichi Sato, Michiaki Sagae, Michiaki Sagae, Makoto Komatsu, Makoto Komatsu, Rudolf Germer, Rudolf Germer, Etsuro Tanaka, Etsuro Tanaka, Hidezo Mori, Hidezo Mori, Toshiaki Kawai, Toshiaki Kawai, Toshio Ichimaru, Toshio Ichimaru, Shigehiro Sato, Shigehiro Sato, Hidenori Ojima, Hidenori Ojima, Kazuyoshi Takayama, Kazuyoshi Takayama, Hideaki Ido, Hideaki Ido, } "Monochromatic flash x-ray generator utilizing copper-target diode", Proc. SPIE 5580, 26th International Congress on High-Speed Photography and Photonics, (17 March 2005); doi: 10.1117/12.567585; https://doi.org/10.1117/12.567585
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