Food and Drug Administration low-level extremely-low-frequency magnetic field exposure facility.
We describe the design, construction details, and performance characteristics of an exposure system designed to provide very well controlled extremely-low-frequency magnetic field exposures of in vitro samples. This system uses Helmholtz coils placed inside temperature-controlled mu-metal chambers to provide simultaneous ac and dc field exposures at any relative angle with minimal residual background field. The system has both exposed and sham-exposed chambers and is operated under computer control in such a way as to ensure blind exposure of samples.
Davis
C C
CC
Electrical Engineering Department, University of Maryland, College Park 20742, USA.
Barber
I
I
Swicord
M L
ML
D000818:Animals; D001698:Biomedical Engineering / Q000295:instrumentation; D003199:Computer Systems; D004574:Electromagnetic Fields / Q000009:adverse effects; D004780:Environment, Controlled; D004781:Environmental Exposure; D004867:Equipment Design; D006801:Humans; D008670:Metals; D011829:Radiation Dosage; D011830:Radiation Effects; D013679:Technology, Radiologic / Q000295:instrumentation; D014481:United States; D014486:United States Food and Drug Administration
D008670:Metals