Transverse oscillating bubble enhanced laser-driven betatron X-ray radiation generation

Area of Science:

• Plasma Physics
• Laser-driven particle acceleration
• X-ray science

Background:

• Ultrafast, high-brightness X-ray pulses are crucial for scientific research.
• Traditional X-ray generation relies on large-scale synchrotron facilities.
• Compact X-ray sources based on laser-wakefield acceleration (LWFA) offer a promising alternative.

Purpose of the Study:

• To experimentally demonstrate a method for enhancing LWFA-driven betatron X-ray emission.
• To increase the number of generated photons from compact X-ray sources.
• To optimize X-ray parameters for specific applications.

Main Methods:

• Utilizing a novel Transverse Oscillating Bubble Enhanced Betatron Radiation scheme.
• Orchestrating the temporal laser pulse shape and accelerating plasma structure.
• Achieving controlled off-axis electron injection for large-amplitude betatron oscillations.

Main Results:

• Significant increase in the number of generated photons.
• Demonstration of enhanced X-ray emission parameters.
• Successful manipulation of betatron oscillation amplitude.

Conclusions:

• The Transverse Oscillating Bubble Enhanced Betatron Radiation scheme effectively enhances LWFA-driven betatron X-ray emission.
• This method enables optimization of X-ray parameters for applications like atomic resolution studies and advanced imaging.
• The approach promises higher peak and average brightness X-ray beams from compact sources.