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Proceedings Paper

Characteristic x-ray generator and its applications
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Paper 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.

Paper Details

Date Published: 17 September 2008
PDF: 5 pages
Proc. SPIE 7080, Penetrating Radiation Systems and Applications IX, 70800N (17 September 2008); doi: 10.1117/12.796064
Show Author Affiliations
Eiichi Sato, Iwate Medical Univ. (Japan)
Hiroshi Matsukiyo, Toho Univ. School of Medicine (Japan)
Akihiro Osawa, Toho Univ. School of Medicine (Japan)
Toshiyuki Enomoto, Toho Univ. School of Medicine (Japan)
Manabu Watanabe, Toho Univ. School of Medicine (Japan)
Jiro Nagao, Toho Univ. School of Medicine (Japan)
Akira Ogawa, Iwate Medical Univ. (Japan)
Shigehiro Sato, Iwate Medical Univ. (Japan)


Published in SPIE Proceedings Vol. 7080:
Penetrating Radiation Systems and Applications IX
F. Patrick Doty; H. Bradford Barber; Hans Roehrig; Richard C Schirato, Editor(s)

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