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A gradiometer-configured magnetic brain measurement system based on a serf atomic magnetometer

A technology of atomic magnetic intensity and measurement system, which is applied in the use of magneto-optical equipment for magnetic field measurement, diagnostic recording/measurement, magnetic field size/direction, etc. High price and the effect of improving the signal-to-noise ratio

Active Publication Date: 2021-07-20
BEIHANG UNIV
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Problems solved by technology

[0005] The technical problem of the present invention is: aiming at the shortcomings of the existing SERF magnetometer-based magnetic brain measurement system, a gradiometer-configured magnetic brain measurement system based on SERF atomic magnetometer is provided. Compared with the SQUID magnetic brain measurement system, It can achieve the same magnetic field measurement as SQUID, and the operation and maintenance costs are low; compared with other magnetic field systems that only use SERF atomic magnetometers for single-directional magnetic field measurement, it can more effectively offset the environmental magnetic field noise and improve the signal-to-noise ratio

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  • A gradiometer-configured magnetic brain measurement system based on a serf atomic magnetometer
  • A gradiometer-configured magnetic brain measurement system based on a serf atomic magnetometer
  • A gradiometer-configured magnetic brain measurement system based on a serf atomic magnetometer

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] Such as figure 1 As shown, the present invention is based on the SERF atomic magnetometer gradiometer configuration type magnetoencephalography measurement system, comprising: a magnetic shielding room 1, a magnetic brain measurement cap 2 of the gradiometer configuration mode, a SERF atomic magnetometer gradiometer sensor array 3, SERF atomic magnetometer reference sensor array 4 , reference sensor fixed panel 5 , brain magneto-induced stimulation module 6 , data acquisition and processing module 7 .

[0029] The specific implementation process is as follows: The gradiometer-configured magnetoencephalometric measurement based on the SERF atomic magnetometer is carried out in a magnetically shielded room. The subject wears a magnetoencephalography measurement cap 2 suitable for gradiometer configuration mode on the head, and receives the audit...

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Abstract

The invention relates to a gradiometer-configured magnetic brain measurement system based on a SERF atomic magnetometer, comprising: a magnetic shielding room, a magnetic brain measurement cap suitable for a gradiometer configuration mode, a SERF atomic magnetometer gradiometer sensor array, a SERF Atomic magnetometer reference sensor array, brain magneto-induced stimulation system, data acquisition and processing system. Compared with the traditional SQUID (Superconducting Quantum Interferometer) magnetic brain measurement system with high price, high operating cost, large volume and heavy structure, the magnetic brain measurement system based on SERF atomic magnetometer has flexible structure and negligible operating cost , and can achieve the same magnetic brain measurement as SQUID. Secondly, the gradiometer-configured magnetic brain measurement system based on the SERF atomic magnetometer can more effectively offset the environmental magnetic field noise and improve the signal-to-noise Compare.

Description

technical field [0001] The invention relates to the field of biomedical instruments, in particular to a device system using an atomic magnetometer, such as a SERF (Spin-Exchange Relaxation-Free, no spin-exchange relaxation) atomic magnetometer, for gradient brain magnetic measurement. Background technique [0002] Because of its high time resolution and spatial resolution, magnetoencephalography has important application value in clinical and brain science research. The magnetoencephalography technology based on superconducting quantum interference device (SQUID) is mature, but its wide application is limited due to its high price, high maintenance and operation cost, and bulky structure. [0003] Nowadays, SERF magnetometers have been able to achieve the same sensitivity as SQUID devices, so MEG systems based on SERF magnetometers are gradually developing. The magnetoencephalography system based on SERF magnetometer can arrange SERF magnetometer in various positions of the...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/245A61B5/246A61B5/00G01R33/032
CPCA61B5/6803A61B5/246G01R33/032
Inventor 宁晓琳安楠曹富智房建成韩邦成
Owner BEIHANG UNIV
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