Análisis comparativo de SAR y estrés en animales pequeños en dos sistemas de radiación de onda viajera y de onda estacionaria a 900 MHz

  1. López Vila, Lucía
  2. Salas Sánchez, Aarón Ángel
  3. Moreno Piquero, Eduardo
  4. Rodríguez González, Juan Antonio
  5. Ares Pena, Francisco José
  6. López Martín, María Elena
Proceedings:
URSI 2013 XXVIII Simposium Nacional de la Unión Internacional de Radio; 11-13 septiembre 2013

Publisher: U.R.S.I.

ISBN: 978-84-941537-1-6

Year of publication: 2013

Type: Conference paper

Abstract

Exposure to non-ionizing electromagnetic radiation is increasing every day through mobile phones. In this experiment we try to find the influence of this exposure in twenty-four Sprague-Dawley rats brain when radiation is caused by a GTEM chamber (travelling wave chamber) and by a stationary wave chamber. Both chambers are irradiating at frequency of 900 MHz. The experimental system consisted of a vector signal generator, a directional coupler, a power meter and the two enclosures (working separately) where the animal was immobilized by a methacrylate holder. In order to determine the radiation effects, rectal thermal measures are performed to calculate the SAR (Specific Absorption Ratio) values in the brain. We performed a comparison between the radiation dosimetry, compared the stress levels of the animals and finally we studied the neuronal activation with immunohistochemistry test c-fos in the brain of animals exposed to radiation in both chambers. We found that a GTEM chamber gives lower values for the average SAR than a stationary wave chamber. Stress levels in animals are higher in the cavity standing wave than in the GTEM. Postmortem neuronal activation in the brain appears with a different pattern: unilateral in traveling wave and bilateral in standing-wave