X-ray computed tomography scanning schemes and reconstruction capabilities at the BAMline (BESSY II)

Area of Science:

• Materials Science
• Physics
• Engineering

Background:

• The BAMline at BESSY II synchrotron has over 20 years of experience in computed tomography.
• X-ray computed tomography (XCT) is crucial for analyzing internal structural features like porosity and cracks.
• There is a growing trend towards in situ and operando studies in tomographic X-ray imaging.

Purpose of the Study:

• To present the enhanced X-ray computed tomography (XCT) capabilities at the BAMline.
• To introduce the new software suite, including live reconstruction, for imaging users.
• To highlight advancements enabling real-time analysis during experiments.

Main Methods:

• Implementation of sequence-based step-scan XCT for preview reconstruction during scans.
• Inclusion of lateral shifts in the sequence-based scheme to mitigate ring artifacts.
• Development of calculation software for controlling monochromators to optimize beam spectrum.

Main Results:

• The BAMline now provides live XCT reconstruction for immediate experimental quality control.
• Sequence-based step-scan XCT with lateral shifts improves image quality by reducing artifacts.
• New software allows precise control over XCT parameters like beam energy and sample-detector distance.

Conclusions:

• The enhanced BAMline capabilities significantly support in situ and operando XCT studies.
• Real-time reconstruction and improved image quality enable more reliable analysis of dynamic processes.
• The developed tools offer greater control and precision for advanced X-ray imaging applications.