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| Russia develops ultra-sensitive brain scanning magnetometer |
Science and Technology Daily, Moscow, August 16 (Reporter Dong Yingbi) The Quantum Center of the Skolkovo Institute of Science and Technology in Moscow, Russia, and the Russian Higher School of Economics have developed an ultra-sensitive solid-state magnetometer for brain scanning that can make the brain The cost of magnetic imaging is reduced by 10 times
.
Related research results were recently published in the journal Neuroimaging, an international journal that specializes in the visualization of human brain activity
Compared with other methods of studying the electrical activity of the brain, the main advantage of magnetic brain imaging is the high precision brought about by the transparency of biological tissues to the magnetic field
.
However, to date, due to the high cost and complexity of requiring extremely cold liquid helium or heating high-temperature gas in manufacturing this equipment, brain magnetic imaging is only available in a few laboratories around the world
The sensor based on iron-yttrium garnet film developed by the Russian Quantum Center has become the world's first solid-state ultra-sensitive magnetometer operating at room temperature
.
The system based on quantum sensors has higher sensitivity and can record extremely weak brain electrical signals
The scientific research team of the Skolkovo Institute of Science and Technology conducted an experimental study on the applicability of the new sensor
.
The experiment is based on recording a simple EEG signal—a rhythm
Maxim Ostras, the project manager of the Russian Quantum Center, said that although the principle of operation of this quantum sensor is similar to the classical method, the quantum exchange interaction enables the recording of the value of the magnetic field 1000 times lower than when using traditional solutions.
.
Such technology is very suitable for solving tasks related to brain research
Aleksey Osazi, director of the Bioelectric Interface Center of the Russian Higher School of Economics, said that the successful development of the new quantum sensor has greatly reduced the cost of the equipment.
