Micro-focusing System of the Taiwan Contract Beamline BL12XU at SPring-8 for IXS Experiments under High Pressure

Autor: Yen-Fang Song, Shih-Chun Chung, King-Long Tsang, Chi-Yi Huang, Yong‐Qiang Cai
Rok vydání: 2007
Předmět:
Zdroj: AIP Conference Proceedings.
ISSN: 0094-243X
Popis: The Taiwan Contract Beamline BL12XU at SPring‐8 is designed for inelastic X‐ray scattering (IXS) experiments. DCS is a powerful technique capable of probing the dynamic behavior and electronic structure of materials under high pressure. The state‐of‐the‐arts technology to generate static high pressure up to mega‐bar range uses diamond anvil cells (DAC). The allowed volume of the sample in DAC scales inversely with the pressure and is limited to the order of 1 × 10−3 mm3. In order to utilize such a device to explore the interesting phenomena under high pressure, we have designed a micro‐focusing system using a set of KB mirrors, which is compatible with the existing optical system of BL12XU. Realistic ray‐tracing results indicate that the system can achieve a focus of 10 μm × 5.3 μm(H × V) with a total efficiency of about 86%. The improved focus is expected to substantially enhance the experimental capability of BL12XU for high‐pressure research.
Databáze: OpenAIRE