Electron bunch diagnostics for laser-plasma accelerators, from THz to X-rays
type: Dataset
description: This thesis presents a series of single-shot non-intrusive diagnostics of key attributes of electron bunches produced by a laser-plasma accelerator (LPA). Three injection mechanisms of the LPA are characterized: channeled and self-guided self-injection, plasma down-ramp injection, and two-beam colliding pulse injection. New diagnostic techniques are successfully demonstrated: up to 8 times higher sensitivity wavefront sensor-based plasma density measurements, strong spatiotemporal coupling of the focused THz pulse is demonstrated using the temporal electric-field cross-correlation (TEX) of a long chirped probe with a short probe and confirms the two-component structure of the bunch observed by electron spectrometry, and normalized transverse emittances as low as 0.1 mm mrad are demonstrated for 0.5 GeV-class beams produced in a capillary-guided LPA by characterizing the betatron radiation emitted by the electrons inside the plasma using a new single-shot X-ray spectroscopy technique.
landing page: https://pastel.hal.science/pastel-00682452
keyword: acceleration-laser-plasma
keyword: betatron-radiation
keyword: controle-de-linjection
keyword: densite-plasma
keyword: infoeu-reposemanticsdoctoralthesis
keyword: injection
keyword: laser-plasma-acceleration
keyword: physphysphys-plasm-phphysics-physicsphysics-physicsplasma-physics-physicsplasm-ph
keyword: plasma-density
keyword: rayonnement-betatron
keyword: rayonnement-de-transition
keyword: theses
keyword: transition-radiation
issued: 2026-05-23T13:48:56.760536
modified: 2026-05-23T13:48:56.760541
language: en
contact point: Organization
  fn: CCSD

test_moissonnage_selune
type: Agent

Electron bunch diagnostics for laser-plasma accelerators, from THz to X-rays
type: Distribution
format: HTML
access URL: https://pastel.hal.science/pastel-00682452
issued: 2026-05-23T13:48:56.780391
modified: 2026-05-23T13:48:56.719932