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Reference : UMR7605-ELOMUG-021
Workplace : ARPAJON
Date of publication : Thursday, January 31, 2019
Type of Contract : FTC Scientist
Contract Period : 24 months
Expected date of employment : 1 March 2019
Proportion of work : Full time
Remuneration : between 2605 and 3007 euros gross per month according to experience
Desired level of education : PhD
Experience required : Indifferent
The candidate will work in the group in the frame of an ERC project, lead by J. Fuchs, will start on Jan 1st, 2019, aiming at investigating nucleosynthesis in the laboratory, using ultra-high power lasers. The project encompasses several areas: ion acceleration at high energy, neutron conversion, generation and characterization of plasmas, nuclear physics. The ambitious goal of the project will require a number of challenges to be addressed, in particular laser-accelerate proton beams to a few hundred MeV energies, and use them for massive neutron production through a spallation process in a secondary high-Z target. The proposed postdoctoral position will provide numerical modeling support to the experiments conducted within the ERC project. Several PhDs students will be also part of the project; the candidate is expected to participate to their mentoring. The candidate will also be encouraged to write her/his own proposals to advance the project.
The research work will help design and interpret the experiments by means of two simulation techniques: (i) particle-in-cell (PIC) calculations, describing the hot-electron generation and ion acceleration that result from the laser-plasma interaction; (ii) Monte Carlo simulations, modeling the atomic and nuclear reactions involved during the large-scale transport of the high-energy protons through the neutron converter. PIC simulations will be performed using the Calder code developed at CEA/DAM. Special emphasis will be put on optimizing, both in terms of energy spectra and charge, the fast proton source using a variety of target types and under ultrahigh-intensity (≥〖10〗^22 Wcm^(-2)) conditions specific to the Apollon and ELI-NP facilities. Besides conducting and analyzing high-performance numerical simulations, the postdoctoral fellow is expected to develop dedicated tools and/or improve the simulation codes at his disposal, by implementing new physical models or advanced numerical schemes. The candidate is expected to take the lead in writing original papers with high-impact journals highlighting her/his research, relevant to nuclear astrophysics and nucleosynthesis.
A PhD in computational plasma physics, nuclear physics, applied mathematics or a related field is required. A demonstrated ability in scientific paper write-up is necessary, proposal write-up skills is a plus. The candidate is expected to publish and promote her/his research, as well as to propose projects. The project is performed in a team, including strong interactions with the experimental team, hence aptitude for working in a team and in a multi-disciplinary environment is necessary. Other essential criteria for this post are the ability to work independently, organisational ability and ability to account for one's own actions.
The research work will be mainly carried out at CEA/DAM (Arpajon, near Paris), with frequent visits at LULI (Palaiseau, near Paris). It will include working tightly with collaborative groups in France and abroad.
The candidate will work in collaboration between the CEA/DAM/DPTA theoretical and numerical group, and the LULI/SPRINT experimental group (https://portail.polytechnique.edu/luli/fr/personnel/equipes-de-recherche/equipe-sources-de-particules-rayonnement-intenses). The aim of the collaboration is to investigate particle acceleration and general magnetized plasma physics, with application in laboratory astrophysics. The contract can start on Jan. 1st, 2019. It will be a full-time post-doctoral two-years contract, that can be renewed on mutual agreement.
Constraints and risks
Note that access to CEA/DAM requires the applicant to go through a security clearance process.
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