C. GOICEANU*, D.D. SANDU**, O.G. AVĂDĂNEI*
* Occupational Health Dept., Institute of Public Health, 14, Victor Babeş St, 700465-Iaşi, Romania
** Physics Faculty, “Alexandru Ioan Cuza” University, 11A, Carol I Blvd, 700506-Iaşi, Romania
Abstract. The experimental study of the biological effects of electromagnetic fields requires a well-defined exposure field inside the volume occupied by exposed objects. A good exposure system has to generate a controlled electromagnetic field having the same magnitude for all biological samples. A shielded exposure system of TEM cell type was built, according to the requirements for biological exposure experiments. To allow long-term exposure of vegetal organisms and animals, illumination and natural ventilation were provided inside the exposure system. In the case of animal exposure, the perturbation of the electromagnetic field in the location of a specific animal due to the presence of neighbor animals was eliminated by using plexiglas holders. Restraining animals in specific locations inside the TEM cell, planewave exposure conditions are achieved for all exposed animals. The wide band of frequencies that can be coupled to the TEM cell, up to about 400 MHz, makes it versatile and suitable for various types of experiments concerning biological exposure to RF fields.
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