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

被引:11
作者
Chen, Guang [1 ,2 ]
Chu, Shengqi [2 ]
Sun, Tianxi [3 ]
Sun, Xuepeng [3 ]
Zheng, Lirong [2 ]
An, Pengfei [2 ]
Zhu, Jian [4 ]
Wu, Shurong [5 ]
Du, Yonghua [6 ]
Zhang, Jing [2 ]
机构
[1] Anhui Univ, Inst Hlth Sci, Hefei 230601, Anhui, Peoples R China
[2] Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China
[3] Beijing Normal Univ, Coll Nucl Sci & Technol, Beijing 100975, Peoples R China
[4] Univ Chinese Acad Sci, Dept Sci Hist & Archaeometry, Beijing 100949, Peoples R China
[5] Jingdezhen Ceram Inst Archaeol, Jingdezhen 333001, Peoples R China
[6] Agcy Sci Technol & Res, Inst Chem & Engn Sci, Heterogeneous Catalysis, 1 Pesek Rd, Jurong Isl 627833, Singapore
来源
JOURNAL OF SYNCHROTRON RADIATION | 2017年 / 24卷
基金
中国国家自然科学基金;
关键词
confocal XAS; mobile endstation; sacrificial red glaze; depth-dependent valence distribution; XRF; COPPER; XANES; BEAMLINE; IFEFFIT; GLASSES; EXAFS;
D O I
10.1107/S1600577517010207
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
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 degrees 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.
引用
收藏
页码:1000 / 1005
页数:6
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