Focusing high-energy x-rays by a PMMA compound x-ray lens on Beijing synchrotron radiation facility

The x-ray compound lens is a novel refractive x-ray optical device.This paper reports the authors' recent research on a polymethylmethacrylate (PMMA) compound x-ray lens. Firstly the designing andLIGA fabrication process for the PMMA compound x-ray lens are brieflydescribed. Then, a method for theoretical analysis, as well as theexperimental system for measurement is also introduced. Finally, thefocusing spots for 8keV monochromatic x-rays by the PMMA compoundx-ray lens are measured and analysed. According to the experimentalresults, it is concluded that the PMMA compound x-ray lens promises agood focusing performance under the high-energy x-rays.