Antiscattering X-ray fluorescence analysis for large-area samples

Full-field x-ray fluorescence (XRF) imaging is an efficient technique for investigating element composition of a sample and the corresponding spatial distribution. Eliminating scattering x-rays is important for visualizing diluted/trace elements clearly. However, using the linear polarization of synchrotron radiation to remove scattering in full-field XRF imaging has not been feasible for many years because a synchrotron beam is inherently narrow in the direction perpendicular to the polarization and a large imaging area and a low scattering background cannot be simultaneously achieved. In this study, the trade-off was solved by expanding a synchrotron beam in the direction perpendicular to the polarization using an asymmetric-cut Si crystal. Large areas of samples were illuminated. In addition, a collimator plate, which only transmitted scattering x-rays that spread in the polarization direction, was used for imaging. Therefore, the detected scattering intensity was low. The present full-field XRF imaging scheme with a size-expanded polarized synchrotron beam is well suited for visualizing diluted/trace elements. It could be extended to x-ray absorption edge fine structure imaging for analyzing the chemical state of diluted/trace elements in inhomogeneous samples.

show abstract

Expanding a polarized synchrotron beam for full-field x-ray fluorescence imaging

Zhao

Hirano

Sakurai

2019

Review of Scientific Instruments

View full text Add to dashboard Cite

show abstract

Time-Resolved X-Ray Microscopy

Лидер

2021

J. Synch. Investig.

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Antiscattering X-ray fluorescence analysis for large-area samples

Abstract: The scattering background in large-area X-ray fluorescence analysis (more than one square centimeter) has been greatly reduced by using highly polarized X-rays and by inserting a collimator plate between the sample and the detector.

Cited by 2 publications

References 28 publications

Expanding a polarized synchrotron beam for full-field x-ray fluorescence imaging

Expanding a polarized synchrotron beam for full-field x-ray fluorescence imaging

Time-Resolved X-Ray Microscopy

Contact Info

Product

Resources

About