Author: Ubeda Gonzalez, D.    [Úbeda Gonzalez, D.]
Paper Title Page
FRBA02 The Nanobender: A New X-Ray Mirror Bender With Nanometer Figure Correction 413
 
  • C. Colldelram, J. Nicolás, P. Pedreira, L. Ribó, C. Ruget, I. Sics
    ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
  • J.M. Casalta Escuer, C. Martín-Nuño Gonzalez, A. Tomas Justribo, D. Úbeda Gonzalez
    SENER, Cerdanyola del Vallès, Spain
 
  Over time X-Ray mirrors are demanded for better focusing, closer to sample refocusing, spot size as well as better beam uniformity at sample position. Based on the experience of ALBA Phase I beam lines a new alter-native design of a mirror bender* is proposed. The system includes two main functionalities: the mirror bender mechanism and mirror figure error correc-tion. Both mechanisms are based on the introduction of a force constrain on the mirror surface instead of a geometrical one. As being based on a force mechanism they could reach high resolution and especially for the correctors which can achieve nanometre resolution. The correctors are designed to provide high force stability in the mirror side, eliminating the crosstalk between bending and figure correction, and minimizing the sensitivity to drifts. With such controlled deformation of the mirror substrate it is possible to obtain the desired surface figure not only to correct mirror figure errors but also to adapt it to the incident wavefront, thus becoming adaptive system. The mechanical solutions are presented which are able to correct mirror surfaces with a resolution of 1 nm reaching slope errors below 100 nrad.
* Patent Registered
 
slides icon Slides FRBA02 [4.766 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2016-FRBA02  
About • paper received ※ 03 October 2016       paper accepted ※ 08 May 2017       issue date ※ 22 June 2017  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)