MEDSI2023 - List of Authors (Chen, Z.J.)

Paper	Title	Page
WEPPP039	Data Preprocessing Method of High-Frequency Sampling XAFS Spectra Collected in a Novel Combined SAXS/XRD/XAFS Technique	207
	Y.P. Liu, Z.J. Chen, G. Mo, Z.H. Wu IHEP, Beijing, People’s Republic of China
	High-frequency (HF) sampling X-ray absorption fine structure (XAFS) spectra with a time-resolution of ~8s were collected in our newly developed synchrotron radiation small-angle X-ray scattering (SAXS)/X-ray diffraction (XRD)/XAFS combined technique. Restoring the HF XAFS spectrum which contains hundreds of thousands to millions of data points to a normal XAFS spectrum consisting of hundreds of data points is a critical step for the subsequent neighbor structure analysis. Herein, the data preprocessing method and procedure of HF XAFS spectra were proposed according to the absorption edge of the standard sample and the rotation angular velocity of the monochromator. This work is expected to facilitate the potential applications of HF XAFS spectra in a time-resolved SAXS/XRD/XAFS experiment.
DOI •	reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-WEPPP039
About •	Received ※ 31 October 2023 — Revised ※ 05 November 2023 — Accepted ※ 07 November 2023 — Issued ※ 18 May 2024
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPPP049	Designs of Multiple Experimental Models for Pink SAXS Station	226
	G. Mo, Z.J. Chen, Z.Q. Cui, Z.H. Li, Y.P. Liu, Y. Tian, Z.H. Wu, X. Xing IHEP, Bejing, People’s Republic of China
	Pink SAXS (small angle X-ray scattering) station is dedicated to performing scattering experiments. A classical planar undulator is adopted as the beam source. The pink beam from the fundamental radiation of the undulator at the range of 8-12keV will be used directly after reflected by a pure silicon reflector. The high flux pink beam will be used to perform high time-resolution SAXS experiments. Monochromatic beam, which is obtained by a normal horizontal monochromator, also can be used alternately to perform high energy resolution experiments. Monochromatic beam and pink beam can be switched through moving in and out of the monochromator. The scattering background is reduced effectively using three sets of scatterless slits. Three diamond compound refractive lenses with different curvatures are employed to focus the 12keV monochromatic beam at sample position, detector position and infinite position respectively. A totally 24 meters long vacuum detector tube is adopted as SAXS camera. Three vacuum compatibility EIGER detectors are equipped at different positions to collect WAXS, SAXS and USAXS signals respectively. Then simultaneous USAXS/SAXS/WAXS measurement could be performed.
DOI •	reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-WEPPP049
About •	Received ※ 01 November 2023 — Revised ※ 05 November 2023 — Accepted ※ 09 November 2023 — Issued ※ 01 July 2024
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Data Preprocessing Method of High-Frequency Sampling XAFS Spectra Collected in a Novel Combined SAXS/XRD/XAFS Technique

207

Y.P. Liu, Z.J. Chen, G. Mo, Z.H. Wu
IHEP, Beijing, People’s Republic of China

High-frequency (HF) sampling X-ray absorption fine structure (XAFS) spectra with a time-resolution of ~8s were collected in our newly developed synchrotron radiation small-angle X-ray scattering (SAXS)/X-ray diffraction (XRD)/XAFS combined technique. Restoring the HF XAFS spectrum which contains hundreds of thousands to millions of data points to a normal XAFS spectrum consisting of hundreds of data points is a critical step for the subsequent neighbor structure analysis. Herein, the data preprocessing method and procedure of HF XAFS spectra were proposed according to the absorption edge of the standard sample and the rotation angular velocity of the monochromator. This work is expected to facilitate the potential applications of HF XAFS spectra in a time-resolved SAXS/XRD/XAFS experiment.

DOI •

reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-WEPPP039

About •

Received ※ 31 October 2023 — Revised ※ 05 November 2023 — Accepted ※ 07 November 2023 — Issued ※ 18 May 2024

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPPP049

Designs of Multiple Experimental Models for Pink SAXS Station

226

G. Mo, Z.J. Chen, Z.Q. Cui, Z.H. Li, Y.P. Liu, Y. Tian, Z.H. Wu, X. Xing
IHEP, Bejing, People’s Republic of China

Pink SAXS (small angle X-ray scattering) station is dedicated to performing scattering experiments. A classical planar undulator is adopted as the beam source. The pink beam from the fundamental radiation of the undulator at the range of 8-12keV will be used directly after reflected by a pure silicon reflector. The high flux pink beam will be used to perform high time-resolution SAXS experiments. Monochromatic beam, which is obtained by a normal horizontal monochromator, also can be used alternately to perform high energy resolution experiments. Monochromatic beam and pink beam can be switched through moving in and out of the monochromator. The scattering background is reduced effectively using three sets of scatterless slits. Three diamond compound refractive lenses with different curvatures are employed to focus the 12keV monochromatic beam at sample position, detector position and infinite position respectively. A totally 24 meters long vacuum detector tube is adopted as SAXS camera. Three vacuum compatibility EIGER detectors are equipped at different positions to collect WAXS, SAXS and USAXS signals respectively. Then simultaneous USAXS/SAXS/WAXS measurement could be performed.

DOI •

reference for this paper ※ doi:10.18429/JACoW-MEDSI2023-WEPPP049

About •

Received ※ 01 November 2023 — Revised ※ 05 November 2023 — Accepted ※ 09 November 2023 — Issued ※ 01 July 2024

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)