An Experimental Set-Up for Measurement of the Power Absorbed from 900 MHz GSM Standing Waves by Small Animals, Illustrated by Application to Picrotoxin-Treated Rats
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An Experimental Set-Up for Measurement of the Power Absorbed from 900 MHz GSM Standing Waves by Small Animals, Illustrated by Application to Picrotoxin-Treated RatsAutor(es)
Fecha
2008Cita bibliográfica
An Experimental Set - Up for Measurement of the Power Absorbed from 900 MHz GSM Standing Waves by Small Animals , Illustrated by Application to Picrotoxin - Treated Rats E. López-Martin, J. C. Bregains, F. J. Jorge-Barreiro, J. L. Sebastian Franco, E. Moreno-Piquero, and F. J. Ares-Pena Progress In Electromagnetics Research, PIER 87, 149-165, 2008.
Resumen
[Abstract] We describe an experimental set-up for exposure of small animals to radiofrequency standing waves that allows direct measurement of the power absorbed by the animal. Essentially, the set-up consists of a metallic box containing an antenna and experimental animal immobilized in a methacrylate holder; a signal generator feeding the antenna; and a power meter. In addition, the box can also contain a video camera to record the animal's behaviour, and a receiving antenna (connected externally to a power meter and a spectrum analyser) to detect alien radiation and harmonics. The absorbed power measurement trivially allows calculation of whole-body mean SAR from the animal's weight; and assuming local SARs to be proportional to whole-body mean SAR, the latter can be used to adjust organ-specific SAR predictions obtained by simulation using a commercial FDTD program with a numerical phantom. The use of the system is illustrated by application to rats given subconvulsive doses of picrotoxin to induce a seizure-prone state analogous to epilepsy: levels of the neuronal activity marker c-Fos in the frontal and piriform cortex of picrotoxin-treated rats exposed to 900 MHz GSM radiation were twice as high as those of unexposed animals.
Palabras clave
Radiofrequency
Radiofrecuencia
Standing waves
Ondas estacionarias
Small animals
Animales pequeños
Radiofrecuencia
Standing waves
Ondas estacionarias
Small animals
Animales pequeños
Versión del editor
Derechos
Atribución-NoComercial-SinDerivadas 3.0 España
ISSN
1559-8985