Confocal depth-resolved fluorescence micro-X-ray absorption spectroscopy for the study of cultural heritage materials: a new mobile endstation at the Beijing Synchrotron Radiation Facility.

A confocal fluorescence endstation for depth-resolved micro-X-ray absorption spectroscopy is described. A polycapillary half-lens defines the incident beam path and a second polycapillary half-lens at 90° defines the probe sample volume. An automatic alignment program based on an evolutionary algorithm is employed to make the alignment procedure efficient. This depth-resolved system was examined on a general X-ray absorption spectroscopy (XAS) beamline at the Beijing Synchrotron Radiation Facility. Sacrificial red glaze (AD 1368-1644) china was studied to show the capability of the instrument. As a mobile endstation to be applied on multiple beamlines, the confocal system can improve the function and flexibility of general XAS beamlines, and extend their capabilities to a wider user community.

[1]  Lirong Zheng,et al.  AI-BL1.0: a program for automatic on-line beamline optimization using the evolutionary algorithm. , 2017, Journal of synchrotron radiation.

[2]  Morten Mattrup Smedskjær,et al.  Confocal depth-resolved micro-X-ray absorption spectroscopy study of chemically strengthened boroaluminosilicate glasses , 2016 .

[3]  T. Sun,et al.  Confocal X-ray technology based on capillary X-ray optics , 2015 .

[4]  G. George,et al.  Application of a spoked channel array to confocal X-ray fluorescence imaging and X-ray absorption spectroscopy of medieval stained glass , 2015 .

[5]  W. Xu,et al.  Colouration mechanism of underglaze copper-red decoration porcelain (AD 13th-14th century), China. , 2014, Journal of synchrotron radiation.

[6]  B. Kanngießer,et al.  Confocal XANES and the Attic black glaze: the three-stage firing process through modern reproduction. , 2014, Analytical chemistry.

[7]  T. Sun,et al.  Adjustment of confocal configuration for capillary X-ray optics with a liquid secondary target , 2013 .

[8]  B. Kanngießer,et al.  Reconstruction procedure for 3D micro X-ray absorption fine structure. , 2012, Analytical chemistry.

[9]  D. Sokaras,et al.  A deep view in cultural heritage—confocal micro X-ray spectroscopy for depth resolved elemental analysis , 2012 .

[10]  B. Kanngießer,et al.  X-ray fluorescence (conventional and 3D) and scanning electron microscopy for the investigation of Portuguese polychrome glazed ceramics: Advances in the knowledge of the manufacturing techniques , 2011 .

[11]  K. Nakano,et al.  Depth elemental imaging of forensic samples by confocal micro-XRF method. , 2011, Analytical chemistry.

[12]  P. Dararutana,et al.  XAS study on copper red in ancient glass beads from Thailand , 2011, Analytical and bioanalytical chemistry.

[13]  F. Brenker,et al.  Spatially resolved 3D micro-XANES by a confocal detection scheme. , 2010, Physical chemistry chemical physics : PCCP.

[14]  F. Brenker,et al.  Polycapillary based μ-XAS and confocal μ-XANES at a bending magnet source of the ESRF , 2009 .

[15]  K. Nakano,et al.  Nondestructive elemental depth profiling of Japanese lacquerware ‘Tamamushi‐nuri’ by confocal 3D‐XRF analysis in comparison with micro GE‐XRF , 2009 .

[16]  G. Falkenberg,et al.  Spatially resolved micro-X-ray fluorescence and micro-X-ray absorption fine structure study of a fractured granite bore core following a radiotracer experiment , 2009 .

[17]  Y. Zou,et al.  Elemental depth profile of faux bamboo paint in Forbidden City studied by synchrotron radiation confocal µ-XRF , 2008 .

[18]  G. Falkenberg,et al.  Determination of the elemental distribution in human joint bones by SR micro XRF , 2008 .

[19]  V. Aksenov,et al.  Development of methods of EXAFS spectroscopy on synchrotron radiation beams: Review , 2006 .

[20]  D. Grolimund,et al.  Speciation and weathering of copper in “copper red ruby” medieval flashed glasses from the Tours cathedral (XIII century) , 2006 .

[21]  Wolfgang Malzer,et al.  A model for the confocal volume of 3D micro X-ray fluorescence spectrometer , 2005 .

[22]  M Newville,et al.  ATHENA, ARTEMIS, HEPHAESTUS: data analysis for X-ray absorption spectroscopy using IFEFFIT. , 2005, Journal of synchrotron radiation.

[23]  John J. Rehr,et al.  Progress in the theory and interpretation of XANES , 2005 .

[24]  H. Hosono,et al.  Origin of the Red Color of Satsuma Copper-Ruby Glass as Determined by EXAFS and Optical Absorption Spectroscopy , 2004 .

[25]  G. Falkenberg,et al.  Confocal microscopic X-ray fluorescence at the HASYLAB microfocus beamline: characteristics and possibilities , 2004 .

[26]  Birgit Kanngießer,et al.  A new 3D micro X-ray fluorescence analysis set-up - First archaeometric applications , 2003 .

[27]  M Newville,et al.  IFEFFIT: interactive XAFS analysis and FEFF fitting. , 2001, Journal of synchrotron radiation.

[28]  M. Gautier-Soyer.  X-ray absorption spectroscopy : A tool to study the local atomic and electronic structure of ceramics , 1998 .