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KMID : 1151820110050060409
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Journal of the Korean Society of Radiology
2011 Volume.5 No. 6 p.409 ~ p.413
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Fabrication of X-ray monocapillary optics for soft X-ray fluorescence analysis
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Cho Hyung-Wook
Park Byoung-Hun
Kim Yong-Min
Choi Chul-Hee
Choi Seong-Hee
Kim Ki-Hong
Chon Kwon-Su
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Abstract
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An X-ray tube used an X-ray fluorescence analysis system has a low X-ray photon intensity which results in reducing measurement accuracy and increasing exposure time. These shortages can be overcame by using a monocapillary optics. A monocapillary optics was optimally designed for focusing the characteristic X-ray of tungsten (8.4 keV). The monocapillary optics can achieve a gain of 10 at the least. The monocapillary optics was fabricated by using puller and pyrex glass, raw material. In fabrication, a weigh of 45g and a temperature of 650˚ was loaded. The total fabrication time was 460 minutes. The fabricated capillary had 87 ㎜ in length and maximum diameter of 300 ㎛ and minimum diameter of 192 ㎛. When the fabricated monocapillary optics is applied to an X-ray fluorescence analysis system, the detection accuracy for soft elements, for example sulfur (S), will be improved.
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KEYWORD
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Monocapillary optics, X-ray focusing, X-ray fluorescence analysis
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