Subject: Question about electrical shielding From: Katrin Krumbholz <katrin@xxxxxxxx> Date: Fri, 14 Dec 2007 19:58:55 -0000 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>Dear All, we may be looking to buy a new sound-booth soon, which we want to use for EEG and which should thus have "electrical shielding". I have asked IAC and they said they build electrically shielded booths, but I am not sure whether they would be the best. Thus I wonder whether anybody could give me any advice on the following two questions: (i) Which company would you recommend us to approach? (ii) What do you think are the requirements in terms of shielding for EEG? A norm published by the German Association for Electrical, Electronic & Information Technologies (VDE) says that noise levels should not be higher than Bpp (peak-to-peak amplitude of magnetic field) < 2e-7 T. However, some people seem to think that that limit is too lenient. Any advice would be gratefully received. Many thanks in advance, and Happy Xmas!!! Katrin Dr Katrin Krumbholz MRC Institute of Hearing Research University Park NG7 2RD Nottingham Phone: +44 (0)115 922 3431 Fax: +44 (0)115 951 8503 This message has been checked for viruses but the contents of an attachment may still contain software viruses, which could damage your computer system: you are advised to perform your own checks. Email communications with the University of Nottingham may be monitored as permitted by UK legislation.