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Compact all-optical precision-tunable narrowband hard Compton X-ray source.

T Brümmer1, S Bohlen1, F Grüner2

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Summary
This summary is machine-generated.

Compact laser-plasma accelerators can now generate tunable, narrow-bandwidth X-ray beams using active plasma lenses. This breakthrough enables precision-tuned femtosecond photon sources for widespread compact X-ray applications.

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Area of Science:

  • Physics
  • Photonics
  • Accelerator Science

Background:

  • Bright X-ray beams with narrow bandwidth and tunable energy are crucial for advanced applications.
  • Current compact laser-plasma-accelerator-driven inverse Compton scattering sources have limited bandwidths (tens of percent).

Purpose of the Study:

  • To demonstrate a conceptual method for producing tunable X-ray and gamma beams with percent-level bandwidths.
  • To enable precision-tuning of X-ray beam energy without altering electron bunch properties.

Main Methods:

  • Utilizing active plasma lenses to precisely control electron bunch-photon interactions.
  • Tailoring the focusing strength of plasma lenses to adjust the central X-ray energy.

Main Results:

  • Conceptually shows the production of tunable X-ray and gamma beams with percent-level bandwidths.
  • Demonstrates tunability of central X-ray energy by adjusting plasma lens focusing strength.

Conclusions:

  • Active plasma lenses offer a pathway to narrowband, precision-tunable femtosecond photon sources.
  • This development is key for a paradigm shift towards proliferation of compact X-ray applications.