ArticleScientific reports2022
A lightweight magnetically shielded room with active shielding.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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Who cites it
28 citing papers in PubMed, 112 citations in OpenAlex.
- Opportunities for Quantum Sensing in Epilepsy Diagnostics.Sensors (Basel, Switzerland) · 2026Review
- Neuromagnetism "On the Cheap": Evaluating a Combined Cylindrical Shield and Partial-Coverage OPM-MEG System for Detecting Sensorimotor Responses in Humans.Sensors (Basel, Switzerland) · 2026Article
- Multi-Layer Magnetic Shields Based on Fe-Based Nanocrystalline and Co-Based Amorphous Ribbons.Materials (Basel, Switzerland) · 2026Article
- Revolutionizing Pediatric Neurophysiology With Magnetoencephalography.Psychophysiology · 2026Review
- SPM-30 years and beyond.Cerebral cortex (New York, N.Y. : 1991) · 2025Review
- Wearable Magnetoencephalography in a Lightly Shielded Environment.IEEE transactions on bio-medical engineering · 2025Article
- Bias Calibration of Optically Pumped Magnetometers Based on Variable Sensitivity.Sensors (Basel, Switzerland) · 2025Article
- Simulation Research on Low-Frequency Magnetic Noise in Fe-Based Nanocrystalline Magnetic Shields.Materials (Basel, Switzerland) · 2025Article
- Demonstrating equivalence across magnetoencephalography scanner platforms using neural fingerprinting.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- Determining sensor geometry and gain in a wearable MEG system.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- Fast Degaussing Procedure for a Magnetically Shielded Room.Materials (Basel, Switzerland) · 2024Article
- Enhancement of Magnetic Shielding Based on Low-Noise Materials, Magnetization Control, and Active Compensation: A Review.Materials (Basel, Switzerland) · 2024Review
- A novel, robust, and portable platform for magnetoencephalography using optically-pumped magnetometers.Imaging neuroscience (Cambridge, Mass.) · 2024Article
- Applications of OPM-MEG for translational neuroscience: a perspective.Translational psychiatry · 2024Review
- Noise Reduction and Localization Accuracy in a Mobile Magnetoencephalography System.Sensors (Basel, Switzerland) · 2024Article
- A Novel, Robust, and Portable Platform for Magnetoencephalography using Optically Pumped Magnetometers.bioRxiv : the preprint server for biology · 2024Article
- Adaptive multipole models of optically pumped magnetometer data.Human brain mapping · 2024Article
- Simultaneous whole-head electrophysiological recordings using EEG and OPM-MEG.Imaging neuroscience (Cambridge, Mass.) · 2024Article
- Article
- A magnetoencephalography dataset during three-dimensional reaching movements for brain-computer interfaces.Scientific data · 2023Article
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Authors and funding
26 authors at 6 institutions in 3 countries.
Funding
Abstract
Magnetically shielded rooms (MSRs) use multiple layers of materials such as MuMetal to screen external magnetic fields that would otherwise interfere with high precision magnetic field measurements such as magnetoencephalography (MEG). Optically pumped magnetometers (OPMs) have enabled the development of wearable MEG systems which have the potential to provide a motion tolerant functional brain imaging system with high spatiotemporal resolution. Despite significant promise, OPMs impose stringent magnetic shielding requirements, operating around a zero magnetic field resonance within a dynamic range of ± 5 nT. MSRs developed for OPM-MEG must therefore effectively shield external sources and provide a low remnant magnetic field inside the enclosure. Existing MSRs optimised for OPM-MEG are expensive, heavy, and difficult to site. Electromagnetic coils are used to further cancel the remnant field inside the MSR enabling participant movements during OPM-MEG, but present coil systems are challenging to engineer and occupy space in the MSR limiting participant movements and negatively impacting patient experience. Here we present a lightweight MSR design (30% reduction in weight and 40-60% reduction in external dimensions compared to a standard OPM-optimised MSR) which takes significant steps towards addressing these barriers. We also designed a 'window coil' active shielding system, featuring a series of simple rectangular coils placed directly onto the walls of the MSR. By mapping the remnant magnetic field inside the MSR, and the magnetic field produced by the coils, we can identify optimal coil currents and cancel the remnant magnetic field over the central cubic metre to just |B|= 670 ± 160 pT. These advances reduce the cost, installation time and siting restrictions of MSRs which will be essential for the widespread deployment of OPM-MEG.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.