General information
Organisation
The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :
• defence and security,
• nuclear energy (fission and fusion),
• technological research for industry,
• fundamental research in the physical sciences and life sciences.
Drawing on its widely acknowledged expertise, and thanks to its 16000 technicians, engineers, researchers and staff, the CEA actively participates in collaborative projects with a large number of academic and industrial partners.
The CEA is established in ten centers spread throughout France
Reference
SL-DRF-24-0352
Direction
DRF
Thesis topic details
Category
Corpuscular physics and outer space
Thesis topics
Implementation of a novel injector concept to boost the accelerated charge in laser-driven electron accelerators to enable their use for scientific and technological applications
Contract
Thèse
Job description
Ultra-short, high-energy (up to few GeVs) electron beams can be accelerated over just a few centimeters by making an ultra-intense laser interact with a gas-jet, with a technique called “Laser Wakefield Acceleration” (LWFA). Thanks to their small size and the ultra-short duration of the accelerated electron beams, these devices are potentially interesting for a variety of scientific and technological applications. However, LWFA accelerators do not usually provide enough charge for most of the envisaged applications, in particular if a high beam quality and a high electron energy are also required. The goal of this thesis is to implement a novel LWFA injector concept in several state-of-the-art laser facilities, in France and abroad. This injector concept, recently conceived in our group, consists in a solid target coupled with a gas-jet, and should be able to accelerate a substantially higher amount of charge with respect to conventional strategies, while preserving at the same time the quality of the beam. The proposed activity is mainly experimental, but with the possibility to be involved in the large-scale numerical simulation activities that are needed to design an experiment and to interpret its results. The PhD student will have the opportunity to be part of a dynamic team with strong national and international collaborations. They will also acquire the necessary skills to participate in laser-plasma interaction experiments in international facilities. Finally, they’ll have the possibility to be involved in the numerical activities of the group, carried out on the most powerful supercomputers in the world with a state-of-the-art Particle-In-Cell code (WarpX, Gordon Bell prize in 2022).
University / doctoral school
Ondes et Matière (EDOM)
Paris-Saclay
Thesis topic location
Site
Saclay
Requester
Position start date
01/10/2024
Person to be contacted by the applicant
Fedeli Luca luca.fedeli@cea.fr
CEA
DRF/IRAMIS/LIDyL/PHI
LIDYL/PHI p.56
Site de l'Orme des merisiers
CEA Saclay,
91191 Gif-Sur-Yvette, FRANCE
+33 1 69 08 19 59
Tutor / Responsible thesis director
VINCENTI Henri henri.vincenti@cea.fr
CEA
DRF/IRAMIS/LIDyL/PHI
CEA Saclay, 91191 Gif-Sur-Yvette, FRANCE
0169080376
En savoir plus
https://iramis.cea.fr/LIDYL/Phocea/Pisp/index.php?nom=henri.vincenti
https://iramis.cea.fr/LIDYL/PHI/
https://www.olcf.ornl.gov/2022/10/27/warpx-named-gordon-bell-prize-finalist/