| 摘要 |
PURPOSE:To measure very feeble living body magnetism without being influenced by vibration of a refrigerator in a living body magnetism measuring device to estimate a position of an activity area in a living body by measuring a magnetic field generated from inside the living body while using a highly sensitive magnetic field sensor, for example, a superconducting quantum interference device (SQUID). CONSTITUTION:A refrigerator 2 is provided on the outside of a liquid helium container (cryostat) 1, and a cooling mechanism having a cooler 3 inside thereof and a magnetic field sensor unit containing a SQUID sensor and a detecting coil arranged inside of the liquid helium container 1 are also provided. The cooling mechanism and the magnetic field sensor unit are supported separately by the first and the second support mechanisms 11 and 12 to the liquid helium container 1. |
