Faites connaître cette offre !
Reference : UMR8578-TIBMIN0-013
Workplace : ORSAY
Date of publication : Tuesday, June 30, 2020
Type of Contract : FTC Scientist
Contract Period : 4 months
Expected date of employment : 1 September 2020
Proportion of work : Full time
Remuneration : 2800 - 3200
Desired level of education : PhD
Experience required : Indifferent
Study of a low pressure - high density plasma source
for the generation of charged particles
Study of the beam extraction
- study of the plasma
- study of the correlation between the plasma and the beam properties
- results analysis
- repports / communications
- solide background in plasma physics and specifically in magnetized plasmas
- diagnostic of plasmas
- electromagnetic optics
- high voltage and acceleration modules
- written / oral communication
Our laboratory and particularly the team 'Theory ond Modeling of Plasmas - Discharge & Surfaces' (TMP-DS) develop and study vaious plasma sources, most of them low pressure – high density.
The plasma is produced by electorn cyclotron resonance which is known to be very effective for the gas ionisation at low pressure. This excitation mode allow to achieve a high degree of ionization ( > 80% ) for an average injected power relatively low. These high values of the ionization degree made this type of source very common for the generation of charges particles for the accelerators, for instance.
The study proposed here focuses on the quantification of the main properties of such a plasma source aiming to find the best compromise between the injected power, the extracted current, and the energy given to the beam.
A particular attention must be payed to the back-attraction effect of the ionized species down in the stream, by the high energy beam, and the best way to protect the source itself.
The characterisation of the beam will be another part of the project willing to optimize the systeme and indentify the best operation conditions.
Constraints and risks
This work is part of a larger collaboration project
We talk about it on Twitter!