DocumentCode
1482754
Title
Evaluation of a high-performance magnetically shielded room for biomagnetic measurement
Author
Harakawa, Ken-ichi ; Kajiwara, Gyo ; Kazami, Kunio ; Ogata, Hisanao ; Kado, Hisashi
Author_Institution
Superconducting Sensor Lab., Inzai, Japan
Volume
32
Issue
6
fYear
1996
fDate
11/1/1996 12:00:00 AM
Firstpage
5256
Lastpage
5260
Abstract
A spherical magnetically shielded room called COSMOS and a method for measuring the shielding factor of well-shielded rooms have been developed. A dc-superconducting quantum interference device is used to detect faint magnetic fields, and the detected signals are averaged to increase the signal-to-noise ratio. The measured magnetic shielding factor for COSMOS is 420000 at 1 Hz
Keywords
SQUID magnetometers; biomagnetism; biomedical measurement; magnetic shielding; magnetic variables measurement; COSMOS; DC-superconducting quantum interference device; biomagnetic measurement; faint magnetic fields; magnetically shielded room; shielding factor; signal-to-noise ratio; Aluminum; Biomagnetics; Laboratories; Magnetic field measurement; Magnetic materials; Magnetic shielding; SQUIDs; Superconducting coils; Superconducting magnets; Superconducting materials;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.545761
Filename
545761
Link To Document