PGI-8/ICS-8 Seminar: Dr. Yong-Ho Lee (KRISS, Korea)

Seminar of the PGI-8 / ICS-8:

Title:

Development and application of low-noise superconducting quantum interference device (SQUID) systems for biomagnetic measurements

Speaker: Dr. Yong-Ho Lee (Korea Research Institute of Standards and Science, Daejeon, Korea)

Date: 18 November 2013 Time: 11:00

Venue: building 2.4w, seminar room 309b

As the most sensitive magnetic sensors in the low frequency range, magnetometers based on SQUID (superconducting quantum interference device) can be used to measure weak magnetic fields, for example, brain (magnetoencephalography: MEG) or heart (magnetocardiography: MCG), etc. The SQUID system for biomagnetic measurements consists of SQUID sensor array, control electronics, cooling device, shielding of environmental noises, signal processing and analysis software, etc. By measuring these biomagnetic signals, noninvasive study or diagnoses of brain or heart can be done with high temporal resolution. Using MEG, for example, pre-surgical mapping, localization of epileptic foci, and understanding the cognitive process of the brain can be done. Using MCG, ischemic heart disease can be detected with high diagnostic accuracy noninvasively. In the talk, developments and installations of SQUID systems for MEG and MCG, and some clinical research will be introduced.