Laser produced soft x-ray source diagnostics with temporal, spectral, and spatial resolution
M Fraenkel1, Y Ehrlich1, D Rubin1
1Applied Physics Division, Soreq NRC, Yavne 81800, Israel.
The Review of Scientific Instruments
|August 3, 2022
Summary
This study presents a novel diagnostic method combining three tools for precise, multi-dimensional analysis of target emissions. This approach enhances experimental design and simulation validation in high-energy physics research.
Area of Science:
- Plasma Physics
- X-ray Science
- Laser-Matter Interaction
Background:
- Accurate characterization of target emission is crucial for understanding laser-plasma interactions.
- Existing diagnostic methods often lack simultaneous temporal, spectral, and spatial resolution.
Purpose of the Study:
- To demonstrate a combined diagnostic approach for comprehensive target emission analysis.
- To provide temporally, spectrally, and spatially resolved, absolutely calibrated target emission data.
Main Methods:
- Utilized three diagnostic tools: a time-resolved X-ray diode array, a transmission grating spectrometer, and soft X-ray imagers.
- Irradiated Gold (Au) targets with 1.8 kJ, 3 ns laser pulses to generate broadband soft X-ray emission (0.1–3.5 keV).
- Combined data from X-ray diode arrays, spectrometers, and imagers (coupled to CCD and streak cameras).
Main Results:
- Achieved simultaneous, multi-dimensional characterization of soft X-ray emission from Au targets.
- Obtained absolutely calibrated target emission information with high temporal, spectral, and spatial resolution.
- Demonstrated the capability to compare experimental results with simulations.
Conclusions:
- The integrated diagnostic system offers a powerful tool for studying laser-driven X-ray sources.
- This method facilitates the design and analysis of experiments relying on precisely characterized emission.
- Enables more accurate validation of theoretical models and simulations in high-energy density physics.
