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岩下 靖孝 所属 京都産業大学 理学部 物理科学科 職種 准教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2009 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | Dynamic x-ray optics with microfluidics : stabilization of gas bubbles by surface ordering and freezing |
| 執筆形態 | その他 |
| 掲載誌名 | HOUILLE BLANCHE-REVUE INTERNATIONALE DE L EAU |
| 出版社・発行元 | SOC HYDROTECHNIQUE FRANCE |
| 巻・号・頁 | (6),pp.129-134 |
| 著者・共著者 | Yasutaka Iwashita,Christian Bahr,Craig Priest,Stephan Herminghaus,Ralf Seemann |
| 概要 | Compound refractive lenses (CRL), which are composed of many tenses aligned along the optical axis, have been developed as refractive x-ray optics. A CRL has numerous desired properties : It is robust, easy to been developed as re C align and to operate, and can be used for hard x-rays. To broaden the possibilities and functions of static CRL, we propose a "dynamic CRL", which is composed of continuously renewed gas bubbles in a surrounding liquid phase flowing along a thin capillary. Due to the continuous renewal, this system is expected to have a high stability against high x-ray intensities. Furthermore, the variation of the bubble volume and bubble shape by adjusting the flow parameters allows in-situ optimization of the optical properties of the system, i.e. the focal length. Here, we study the usage of liquid crystals and n-alkanes to be used in dynamic CRL. These liquids, have a very low x-ray absorption and the liquid - gas systems can be stabilized without surfactants using the surface ordering of liquid crystals respectively the surface freezing of n-alkanes. |
| DOI | 10.1051/lhb/2009090 |
| ISSN | 0018-6368 |