Design, Realization and Characterization of Exposure Systems for the Experimental Investigation in Bioelectromagnetics
نویسنده
چکیده
Negli ultimi decenni si è osservato un notevole incremento della spermentazione biologica in ambito bioelettromagnetico, al fine di valutare eventuali effetti indotti dall’esposizione a campi elettromagnetici (EM), quali quelli generati dagli apparati di telefonia mobile, su specifici campioni biologici. Tali studi, tuttavia, hanno dato luogo a risultati spesso contrastanti, e pertanto di difficile interpretazione, evidenziando il problema della riproducibilità nella sperimentazione biologica. A tale proposito, l’Organizzazione Mondiale della Sanità [1] ha richiamato l’attenzione sulla necessità di progettare sistemi espositivi in grado di garantire condizioni di esposizione controllata durante gli esperimenti e quindi di condurre una accurata valutazione dosimetrica preliminare che consenta di conoscere la “dose” di campo EM presente nel campione biologico in esame. Si comprende, pertanto, come i solutori numerici del problema elettromagnetico rappresentino un valido strumento, sia in fase di progetto che in fase di caratterizzazione dei sistemi espositivi. Nel presente intervento si mostrerà un esempio di uso del software commerciale Ansoft HFSS per il raffinamento del progetto e per la caratterizzazione, in termini di dose, uniformità del campo sul campione ed interferenza con la strumentazione di laboratorio, di un sistema espositivo a microonde per registrazioni elettrofisiologiche in tempo reale [2] da fettine cerebrali.
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