경 X선 형광분석을 위한 모세관 광학소자 제작 = Fabrication of X-ray monocapillary optics for soft X-ray fluorescence analysis

국문 초록 (Abstract)

경 X선 형광분석 기법에 사용되는 X선 튜브는 X선의 휘도가 낮아 분석의 정밀도가 떨어지고 분석 시간 또한 오래 걸린다. 모세관 집광소자를 이용하면 X선 휘도의 이득(gain)을 최소 10 이상 얻을 수가 있다. 모세관 광학소자는 8.4keV의 텅스텐 특성방사선을 효율적으로 집광할 수 있도록 설계되었다. 파이렉스 유리로 된 모세관 모재를 풀러 (puller)를 이용하여 45 g의 추에 650˚의 온도를 가하여 모세관 광학소자를 제작하였다. 모세관 광학소자의 제작은 총 460분이 소요되었으며 제작된 모세관 광학소자의 길이는 87 ㎜, X선 입사부의 직경은 300 ㎛, 출구부의 직경은 192㎛로 제작되었다. 제작된 모세관 광학소자를 경 X선 형광분석에 적용하면 황(S)과 같은 경원소 검출의 정밀도를 높일수 있을 것이다.

다국어 초록 (Multilingual Abstract)

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.

목차 (Table of Contents)

• 요약
• Abstract
• Ⅰ. 서론
• Ⅱ. 모세관 광학소자의 설계
• Ⅲ. 모세관 광학소자의 제작
• Ⅳ. 결론
• Acknowledgement
• 참고문헌

참고문헌 (Reference)

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