Performance of an adaptive u-focusing Kirkpatrick-Baez system for high-pressure studies at the Advanced Photon Source

Riccardo Signorato; Daniel Hausermann; Maddury Somayazulu; Jean-Francois Carre

doi:10.1117/12.520827

13 January 2004 Performance of an adaptive u-focusing Kirkpatrick-Baez system for high-pressure studies at the Advanced Photon Source

Riccardo Signorato, Daniel Hausermann, Maddury Somayazulu, Jean-Francois Carre

Author Affiliations +

Proceedings Volume 5193, Advances in Mirror Technology for X-Ray, EUV Lithography, Laser, and Other Applications; (2004) https://doi.org/10.1117/12.520827
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

X-ray studies of materials in extreme conditions of pressure call for focusing optics able to deliver very clean micron-size focal spots of high energy X-rays with added stringent requirements of flexibility to accommodate different experimental geometries and fast focal spot size adjustment. These requirements are fully met by multi-electrode modular piezoelectric bimorph mirrors (PBMs) in Kirkpatrick-Baez configurations, and these optical systems have already been successfully used for several years at high brilliance 3rd generation synchrotron radiation facilities such as the ESRF and SPring-8. The optical characterization and in-situ X-ray performance of the first pair of modular PBMs installed at the Advanced Photon Source at Argonne national laboratory is reported here. Metrology tests show that the mirrors are able to approximate an arbitrary surface described by a 9th order polynomial in shape with only 100 Å rms shape error over their full optical surface. Full adaptive zonal control allows wave front correction, delivers optimum focal spot profiles (as small as 8.5 (H) x 5.0 (V) μm² FWHM at a focal distance of 1 m) and fully achieves the creep-free short and long term stability and repeatability required by the experimental program.

Citation Download Citation

Riccardo Signorato, Daniel Hausermann, Maddury Somayazulu, and Jean-Francois Carre "Performance of an adaptive u-focusing Kirkpatrick-Baez system for high-pressure studies at the Advanced Photon Source", Proc. SPIE 5193, Advances in Mirror Technology for X-Ray, EUV Lithography, Laser, and Other Applications, (13 January 2004); https://doi.org/10.1117/12.520827

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