# Tunable X-ray source by Thomson scattering during laser-wakefield acceleration

## TL;DR

This paper demonstrates a method to generate tunable X-ray sources using Thomson scattering during laser wakefield acceleration, providing real-time diagnostics and energy control for the accelerator.

## Contribution

It introduces a novel all-optical Thomson scattering setup that tracks electron beam energy evolution and enables tunable X-ray production during laser wakefield acceleration.

## Key findings

- Transverse shadowgraphy effectively detects the collision position.
- The emitted spectrum varies with the scattering position.
- The setup offers a potential diagnostic and tunable X-ray source.

## Abstract

We report results on all-optical Thomson scattering intercepting the acceleration process in a laser wakefield accelerator. We show that the pulse collision position can be detected using transverse shadowgraphy which also facilitates alignment. As the electron beam energy is evolving inside the accelerator, the emitted spectrum changes with the scattering position. Such a configuration could be employed as accelerator diagnostic as well as reliable setup to generate x-rays with tunable energy.