Kernel
Sensor assembly, signal processing, and human studies for Kernel Flux, a 432-magnetometer MEG system.
I worked on Kernel Flux, a helmet that measured the magnetic fields produced by brain activity. My work covered sensor assembly and calibration, CAD fixtures, Python analysis, and participant studies.
I often tested the sensors on myself. Noise measurements and recorded brain responses helped us evaluate changes to the hardware. I co-authored the paper describing the completed system.
Flux required a magnetically shielded room. Working within that constraint made me interested in how brain measurements could become easier to collect outside a specialized lab. Kernel later discontinued Flux.
Threads
On the record
Assets
paper
Paper, SPIE 2021 — Kernel Flux: a whole-head 432-magnetometer OP-MEG system for brain activity imaging during natural human experiences
2021-03-05
Pratt et al. (38 authors including G. Sundar), "Kernel Flux: a whole-head 432-magnetometer optically-pumped magnetoencephalography (OP-MEG) system for brain activity imaging during natural human experiences," Proc. SPIE 11700, Optical and Quantum Sensing and Precision Metrology, 1170032 (2021). DOI 10.1117/12.2581794.
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Guhan wearing the Kernel Flux OPM-MEG helmet
2020
