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High Spatial Resolution Chemical Imaging of Implant-Associated Infections with X-ray Excited Luminescence Chemical Imaging Through Tissue

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Coded aperture imaging for fluorescent x-rays.

A Haboub¹, A A MacDowell¹, S Marchesini¹

¹Lawrence Berkeley National Laboratories, Berkeley, California 94720, USA.

The Review of Scientific Instruments

|July 3, 2014

Summary

This summary is machine-generated.

This study introduces a novel coded aperture imaging technique for fluorescent x-rays. The method enables high-resolution x-ray imaging using synchrotron radiation sources.

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Area of Science:

X-ray imaging
Optics
Detector physics

Background:

Traditional x-ray imaging systems often face limitations in numerical aperture and resolution.
Fluorescent x-ray imaging is crucial for material analysis but requires advanced detection methods.

Purpose of the Study:

To develop and validate a coded aperture imaging system for fluorescent x-rays.
To enhance the capabilities of x-ray imaging using synchrotron radiation.

Main Methods:

A pixilated charge-coupled device detector was used with a custom-designed coded aperture.
The coded aperture pattern, termed 'No-Two-Holes-Touching', was algorithmically developed and fabricated.
Image reconstruction was performed using ray tracing algorithms and experimental validation.

Main Results:

The system successfully imaged fluorescent x-rays in the 6-25 KeV energy range.
The coded aperture enabled a large numerical aperture, improving imaging potential.
Ray tracing algorithms accurately reconstructed images from encoded patterns.

Conclusions:

Coded aperture imaging offers a viable approach for high-resolution fluorescent x-ray detection.
This technique advances the field of synchrotron-based x-ray microscopy and spectroscopy.