Tim James

University of Sussex · Department of Physics and Astronomy

Recent developments in performance and practicality of optically-pumped magnetometers (OPMs) have enabled new capabilities in non-invasive brain function mapping through magnetoencephalography. In particular, the lack of cryogenic operating conditions allows for more flexible placement of sensor heads closer to the brain, leading to improved spatia...

We describe a modular optically-pumped magnetometer (OPM) system which enables fast prototyping and testing of new measurement schemes. Quick reconfiguration of self-contained laser and sensor modules allow easy construction of various array layouts. The modularity of this system enables scaling of shared light-source arrays, and development of met...

As we enter a chronic phase of the SARS-CoV-2 pandemic, with uncontrolled infection rates in many places, relative regional susceptibilities are a critical unknown for policy planning. Tests for SARS-CoV-2 infection or antibodies are indicative but unreliable measures of exposure. Here instead, for four highly-affected countries, we determine popul...

Recent developments in performance and practicality of optically pumped magnetometers have enabled new capabilities in non-invasive brain function mapping through magnetoencephalography (MEG). In particular, the lack of need of cryogenic operating conditions allows for more flexible placement of the sensor heads closer to the brain surface, leading...

The coronavirus pandemic is wreaking public health, social, and economic havoc across the globe, and to date a variety of strategies have been implemented to attempt to control the spread of disease [1, 2]. A critical unknown for policy planning is the number of people who have been infected and are no longer susceptible [3]. Tests for active SARS-...