Characteristic x-ray generator and its applications

Eiichi Sato; Hiroshi Matsukiyo; Akihiro Osawa; Toshiyuki Enomoto; Manabu Watanabe; Jiro Nagao; Akira Ogawa; Shigehiro Sato

doi:10.1117/12.796064

17 September 2008 Characteristic x-ray generator and its applications

Eiichi Sato, Hiroshi Matsukiyo, Akihiro Osawa, Toshiyuki Enomoto, Manabu Watanabe, Jiro Nagao, Akira Ogawa, Shigehiro Sato

Author Affiliations +

Proceedings Volume 7080, Penetrating Radiation Systems and Applications IX; 70800N (2008) https://doi.org/10.1117/12.796064
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

Characteristic x-ray generator consists of a constant high-voltage power supply, a filament power supply, a turbomolecular pump, and an x-ray tube. The x-ray tube is a demountable diode which is connected to the turbomolecular pump and consists of the following major devices: a pipe-shaped molybdenum hole target, a tungsten hairpin cathode (filament), a focusing (Wehnelt) electrode, a polyethylene terephthalate x-ray window 0.25 mm in thickness, and a stainless-steel tube body. In the x-ray tube, the positive high voltage is applied to the anode (target) electrode, and the cathode is connected to the tube body (ground potential). In this experiment, the tube voltage applied was from 25 to 35 kV, and the tube current was regulated to within 10 μA by the filament temperature. The exposure time is controlled in order to obtain optimum x-ray intensity. The electron beams from the cathode are converged to the target by the focusing electrode, and sharp K-series characteristic x-rays are produced through the focusing electrode at a tube voltage of 35 kV. Using this generator, we performed monochromatic radiography, monochromatic x-ray computed tomography, and x-ray fluorescence analysis.

Citation Download Citation

Eiichi Sato, Hiroshi Matsukiyo, Akihiro Osawa, Toshiyuki Enomoto, Manabu Watanabe, Jiro Nagao, Akira Ogawa, and Shigehiro Sato "Characteristic x-ray generator and its applications", Proc. SPIE 7080, Penetrating Radiation Systems and Applications IX, 70800N (17 September 2008); https://doi.org/10.1117/12.796064

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