Laser-driven x-ray and proton micro-source and application to simultaneous single-shot bi-modal radiographic imaging

Area of Science:

• Plasma Physics
• Radiographic Imaging
• Laser-Plasma Interactions

Background:

• Radiographic imaging using X-rays and protons is crucial in research and diagnostics.
• Simultaneously accessing information from both X-ray and proton radiography is challenging.
• Laser-driven plasma sources offer potential for generating both radiation types, but bi-modal applications are underdeveloped.

Purpose of the Study:

• To report the generation of proton and X-ray micro-sources using laser-plasma interactions.
• To demonstrate bi-modal radiographic imaging of objects in a single laser shot.
• To explore the advantages of laser-driven sources for advanced imaging.

Main Methods:

• Utilizing the Texas Petawatt laser focused on solid-density, micrometer-sized tungsten needles.
• Generating simultaneous proton and X-ray micro-sources through laser-plasma interactions.
• Applying the generated sources for bi-modal radiographic imaging of biological and technological samples.

Main Results:

• Successfully generated co-localized proton and X-ray micro-sources.
• Achieved bi-modal radiographic imaging of diverse objects in a single laser shot.
• Demonstrated the potential of laser-driven sources for simultaneous multi-modal imaging.

Conclusions:

• Laser-driven proton and X-ray micro-sources can be effectively generated for bi-modal imaging.
• This technique allows for simultaneous imaging of biological and technological samples.
• Laser-driven sources offer unique advantages like small footprint, spectral bandwidth, and multi-mode emission for advanced radiography.