PIER
 
Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
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A REVERBERATION CHAMBER TO INVESTIGATE THE POSSIBLE EFFECTS OF "IN VIVO" EXPOSURE OF RATS TO 1.8 GHz ELECTROMAGNETIC FIELDS: A PRELIMINARY STUDY

By P. F. Biagi, L. Castellana, T. Maggipinto, G. Maggipinto, T. Ligonzo, L. Schiavulli, D. Loiacono, A. Ermini, M. Lasalvia, G. Perna, and V. Capozzi

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Abstract:
A system generating 1.8 GHz electromagnetic fields for bio-medical and behavioral study on laboratory animals was designed and implemented. The system is based on a reverberation chamber. An input power up to 5 W can be sent to an indoor transmitting antenna and an electric field strength (E) more than 90 V/m can be reached inside the chamber. The system was characterized at different input powers measuring E in different points by means of a miniature sensor. Then, boxes with 300 cc of physiological liquid inside were realized as simple phantoms simulating laboratory animals (rats) and E inside the liquid was measured, performing several simulations by moving the phantoms (1,2) in the chamber and/or putting them still in different positions. On the basis of these measurements, the SAR (Specific Absorption Rate) and the Pe (power efficiency = SAR/input power) were determined at different powers. The actual system is characterized by a low power efficiency with respect to the "in vivo" exposition systems based on transversal electromagnetic (TEM) cells. Its advantage is to have inside the chamber a habitat similar to the usual one for the laboratory animals.

Citation:
P. F. Biagi, L. Castellana, T. Maggipinto, G. Maggipinto, T. Ligonzo, L. Schiavulli, D. Loiacono, A. Ermini, M. Lasalvia, G. Perna, and V. Capozzi, "A reverberation chamber to investigate the possible effects of "in vivo" exposure of rats to 1.8 GHz electromagnetic fields: a preliminary study," Progress In Electromagnetics Research, Vol. 94, 133-152, 2009.
doi:10.2528/PIER09061006
http://www.jpier.org/PIER/pier.php?paper=09061006

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