Active shielding in measurements of DC near biomagnetic fields

Autor: F. Resmer, Giessler F, Marek Ziolkowski, J. Schuler, Jens Haueisen, Hannes Nowak
Předmět:
Zdroj: Scopus-Elsevier
Popis: Measurements of DC near biomagnetic fields are disturbed by low frequency noise, that is not reduced sufficiently by most magnetically shielded rooms or gradiometers. An effective SQUID based active shielding system has been developed and installed at the magnetically shielded rooms in the Biomagnetic Center of the University Jena to reduce external low frequency disturbances. A reduction of the magnetic noise of about 23 dB could be achieved at 50 mHz.
Databáze: OpenAIRE