High-speed X-ray imaging pixel array detector for synchrotron bunch isolation.

Area of Science:

• Physics
• Materials Science
• Engineering

Background:

• High-speed X-ray imaging is crucial for observing dynamic processes in materials.
• Existing detectors often lack the necessary frame rates and dynamic range for such applications.

Purpose of the Study:

• To describe a novel wide-dynamic-range imaging X-ray detector capable of high frame rates.
• To detail the detector's design, operation, and potential applications in materials science.

Main Methods:

• The detector utilizes hybridized modules, each with a silicon X-ray sensor bonded to an application-specific integrated circuit.
• Modules are arranged in a tiled array to achieve a larger format (256 × 384 pixels).
• Internal pixel design allows for high-speed frame storage (8-12 frames) before slower readout.

Main Results:

• Experimental verification of X-ray imaging at frame rates up to 6.5 MHz.
• Demonstration of internal frame buffering for high-speed data acquisition.
• An operational mode to enhance signal-to-noise ratio for cyclical processes.

Conclusions:

• The developed detector supports high-speed X-ray imaging, crucial for studying rapid structural changes.
• Its capabilities, combined with modern X-ray sources, open new research avenues.
• The detector's design facilitates advanced materials analysis and dynamic process observation.