1 September 2005 Monochromatic flash x-ray generator utilizing a disk-cathode silver tube
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Abstract
The high-voltage condensers in a polarity-inversion two-stage Marx surge generator are charged from –50 to –70 kV by a power supply, and the electric charges in the condensers are discharged to an x-ray tube after closing gap switches in the surge generator with 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 silver Kα lines are produced using a 30-μm-thick palladium 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. At a charging voltage of –70 kV, the instantaneous tube voltage and current are 90 kV and 0.8 kA, respectively. The x-ray pulse widths are approximately 80 ns, and the instantaneous number of generator-produced Kα photons is approximately 4×107photons/cm2 per pulse at 0.3 m from the source 3.0 mm in diameter.
© (2005) Society of Photo-Optical Instrumentation Engineers (SPIE)
Eiichi Sato, Eiichi Sato, Yasuomi Hayasi, Yasuomi Hayasi, Rudolf K. F. Germer, Rudolf K. F. Germer, Etsuro Tanaka, Etsuro Tanaka, Hidezo Mori, Hidezo Mori, Toshiaki Kawai, Toshiaki Kawai, Takashi Inoue, Takashi Inoue, Akira Ogawa, Akira Ogawa, Shigehiro Sato, Shigehiro Sato, Toshio Ichimaru, Toshio Ichimaru, Kazuyoshi Takayama, Kazuyoshi Takayama, Jun Onagawa, Jun Onagawa, Hideaki Ido, Hideaki Ido, } "Monochromatic flash x-ray generator utilizing a disk-cathode silver tube," Optical Engineering 44(9), 096501 (1 September 2005). https://doi.org/10.1117/1.2049248 . Submission:
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