γ-Ray Generation from Plasma Wakefield Resonant Wiggler.

Area of Science:

• Plasma Physics
• Laser-Plasma Interactions
• Radiation Generation

Background:

• Developing compact and tunable gamma-ray sources is crucial for various scientific and medical applications.
• Existing methods for gamma-ray generation often require large facilities or have limitations in tunability and control.

Purpose of the Study:

• To propose a novel, flexible gamma-ray radiation source.
• To achieve gamma-ray generation using a resonant laser-plasma wakefield wiggler.
• To demonstrate control over radiation polarization.

Main Methods:

• Utilizing a resonant laser-plasma wakefield wiggler induced by centroid oscillations of a short laser pulse in a plasma channel.
• Achieving electron (self-)injection into the wakefield, experiencing transverse oscillations and longitudinal energy gain.
• Enhancing oscillations through resonance between laser pulse centroid and electron betatron oscillations.

Main Results:

• Extended radiation spectrum into the gamma-ray range due to enhanced oscillations.
• Demonstrated tunability of the radiation spectrum.
• Achieved controllable polarization of the generated gamma-ray radiation.

Conclusions:

• The proposed resonant laser-plasma wakefield wiggler offers a flexible and controllable method for generating gamma-ray radiation.
• This approach has the potential for compact and tunable gamma-ray sources.
• The ability to control polarization adds significant value for advanced applications.