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High flux sub-picosecond laser-based hard x-ray platform for advanced material analysis and imaging
O Utéza1, R Clady1, Y Azamoum1
1Aix-Marseille University, CNRS, LP3 UMR 7341, F-13288 Marseille, France.
The Review of Scientific Instruments
|January 29, 2026
Summary
We developed the LP3-ASUR platform, integrating moderate and high-intensity laser beamlines with advanced diagnostics. This enables synchronized, jitter-free hard Kα X-ray generation for high-resolution imaging and material dynamics studies.
Area of Science:
- Laser-based engineering and diagnostics
- High-brilliance X-ray source development
- Materials science and condensed matter physics
Background:
- Ultrashort laser platforms require in situ, in-operando diagnostics for advanced applications.
- Current limitations in laser-based engineering necessitate integrated diagnostic capabilities.
- Pump-probe experiments demand synchronized and stable X-ray sources.
Purpose of the Study:
- To develop and characterize the LP3-ASUR platform for advanced laser-based engineering.
- To enable synchronized, jitter-free hard Kα X-ray generation for time-resolved diagnostics.
- To demonstrate the platform's utility in X-ray imaging and material dynamics studies.
Main Methods:
- Integration of moderate (∼10^13 W/cm^2) and high-intensity (∼10^17-2.5 × 10^19 W/cm^2) laser beamlines.
- Development of modular (optical/X-ray) time-resolved diagnostics in pump-probe configurations.
- Utilizing front-face geometry with massive laser-X-ray converter material for stable X-ray generation.
Main Results:
- Demonstration of high-repetition rate (100 Hz), high-brilliance hard Kα X-ray sources.
- Achieved synchronization and jitter-free operation between laser pulses and X-ray sources.
- Routine generation of hard Kα X-ray sources (10^9 photons/sr/shot, few-hundred femtosecond duration) at 100 Hz.
- Successful implementation in flexible pump-probe experiments and X-ray imaging protocols in air.
Conclusions:
- The LP3-ASUR platform provides robust and stable X-ray tools for demanding scientific cases.
- The platform enables high signal-to-noise ratio X-ray analysis, minimizing accumulation times.
- Opens avenues for innovative imaging and enhanced understanding of laser-matter interactions.
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