Field Nulling PCB coils
Martinos Center for Biomedical Imaging – Magnetoencephalography Brain Imaging System
Project Overview
At the Martinos Center, I developed a groundbreaking room temperature brain imaging system, replacing traditional cryogenic cooling of magnetometer sensors. This project reduced system costs by over $500,000 while maintaining high accuracy.
Key Contributions
Magnetic Field Nullification: Designed and implemented custom hand-wound coils as well as aided in the production of Biplanar PCB coils to nullify Earth’s magnetic field.
Simulation & Production: Conducted Python simulations to model the external environment, optimizing the system's performance for precision brain imaging.
Housing Structure: Designed and fabricated the modular PCB housing enclosure needed to position the PCBs for accurate field nullification.
Impact
Advanced brain imaging capabilities at reduced costs, making the technology more accessible for clinical use.
Fully opensource for hospitals and research labs to create their own system custom to their environment.
PCB housing structure I designed in SolidWorks. Pictured is me and my two bosses who worked with me on this project.
Creating the python simulations of the external environment with the optimization problem solved coil windings.
Final room layout with only 1 pair of coils
First Sensor measurements showing a field of 0.5nT in the Z direction! Revolutionary!
Article written from the Martinos Center about the accomplishments we’ve made.
Me and my boss, holding the very first PCB coil we created.