Faites connaître cette offre !
Reference : UMR8578-TIBMIN0-008
Workplace : ORSAY
Date of publication : Monday, August 05, 2019
Type of Contract : FTC Scientist
Contract Period : 12 months
Expected date of employment : 1 November 2019
Proportion of work : Full time
Remuneration : 2600 - 2800 Euro/month (before taxes)
Desired level of education : PhD
Experience required : Indifferent
Study and characterization of a particle beam aiming its optimization
- caracterization of an e-beam
- analysis of electromagnetic optics
- correlation between experiment and modeling
- results analysis
- write reports / communications
- solid knowledge of electrodynamics and plasma physics
- experimental caracterization of plasmas et charged particles beams
- calculation of electromagnetic configurations
- data treatment
- oral/written communication
The LPGP and particularly the Theory and Modeling of Plasmas – Discharge and Surface (TMP-DS) team develop and study numerous types of plasma sources, most of them being low pressure -high density. These sources are widely used to produce charged particles beams usually exploited for particle accelerators, synchrotron, etc. Generally, the energy transferred to the particles comes from an electrostatic arrangement of grids, followed by several electro-magnets acting on the shape of the beam, correcting aberrations, etc.
The topic proposed here concerns the characterization of the plasma and the study of the electro-magnetic optics for better understanding the source operation and the beam features. These results will be compared with the prediction given by the numerical models available in the team. Precisely, the focus will be on the beam structure and the correlations between the electromagnetic structure and the final beam shape, aiming the model validation.
During the first stage of the project, a plasma source will be used to generate either an electron beam or an ion beam. This study will concern the source characterization and the beams, in terms of intensity, divergence, etc.
In the second stage, the existing structure will be optimized to improve the beam quality depending on the mass and the charge (for ions) and the acceleration energy for electrons.
Constraints and risks
This work is part of a collaborative project involving several CNRS laboratoires and companies.
We talk about it on Twitter!