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Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
Published on: October 11, 2016
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Advanced high resolution x-ray diagnostic for HEDP experiments
A Y Faenov1,2, T A Pikuz3,4, P Mabey5
1Open and Transdisciplinary Research Initiatives, Osaka University, Suita, 565-0871, Japan.
Scientific Reports
|November 8, 2018
Summary
A new X-ray detector offers high spatial resolution (2 µm) and a large field of view (>2 mm²) for high energy density physics (HEDP) experiments. This innovation overcomes limitations of previous techniques, enabling clearer imaging in HEDP research.
Area of Science:
- High Energy Density Physics (HEDP)
- X-ray Imaging
- Detector Technology
Background:
- High-resolution X-ray imaging is vital for HEDP experiments.
- Current high-resolution techniques often sacrifice field of view.
- A need exists for imaging systems balancing resolution and field of view.
Purpose of the Study:
- To present an innovative experimental detector for X-ray imaging in HEDP.
- To achieve high spatial resolution with a large field of view.
- To benchmark the detector's performance with different X-ray sources.
Main Methods:
- Coupling an X-ray backlighter source with a Lithium Fluoride detector.
- Utilizing a Lithium Fluoride detector with a large dynamic range.
- Benchmarking with an X-ray free electron laser (XFEL) and a laser-produced X-ray source.
Main Results:
- Achieved a spatial resolution of 2 µm over a field of view greater than 2 mm².
- Demonstrated reduced penumbra blurring with a laser-produced backlighter.
- Showcased phase contrast imaging capabilities using a coherent monochromatic XFEL beam.
Conclusions:
- The developed platform successfully provides high spatial resolution and a large field of view for HEDP.
- The detector is versatile, performing well with both incoherent and coherent X-ray sources.
- The study presents modeling of X-ray absorption and phase contrast transmission.
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