Post-doctoral position - 1 year
This project aims to develop an antenna allowing very high-field MRI scans applied to osteoarthritic imaging. This antenna will be designed on a flexible substrate by printing. A magnetic field recovery module developed in the laboratory will be added to remote power electronics associated with the antenna.
The main problem of osteoarthritic imaging is the low signal-to-noise ratio. The goal will therefore be to increase the signal-to-noise ratio of the measurement while improving the examination conditions for the patient. To achieve this goal, two solutions must be put in place:
1. The first solution is to develop the reception antenna on flexible substrates thanks to printing process. This solution will allow a better adaptation to the body of the patient and thus a higher signal-to-noise ratio than the standard systems
2. A second solution to reduce noise is to design the receiving electronics as close as possible to the antenna and optimize it according to the characteristics of the antenna. These issues of reception antennas including more and more electronics pose the problem of their power supply, if MRI compatible batteries are usable these require significant maintenance. A solution put forward recently in these environments with high RF field is to use this power to remotely power the electronics of the receiving antenna.
A global system approach of design and realization antenna / circuit should allow to overcome its problems and to increase the SNR of the system.
- Knowledge of RF simulation tools (CST, HFSS, FEKO, ......) and RF electronics (ADS ...)
- Antenna design
- Physics of MRI
- Flexible Substrate Printing - Electronics
Contact: firstname.lastname@example.orgLire la suite