Journal of Radiation Research and Radiation Proces ›› 2017, Vol. 35 ›› Issue (3): 30602-030602.doi: 10.11889/j.1000-3436.2017.rrj.35.030602

• RADIATION PROTECTION • Previous Articles    

A system for the measurement of electric fields in vivo in rats exposed to 1 800 MHz microwave radiation

XING Zhenhe, QI Hongxin, ZHANG Jie, WANG Xianghui, CHEN Shude   

  1. Institute of Biophysics, Department of Physics and Materials Science, East China Normal University, Shanghai 200241, China
  • Received:2017-02-16 Revised:2017-03-17 Online:2017-06-20 Published:2017-06-15
  • Supported by:

    Supported by the Natural Science Foundation of China (31600675)

Abstract:

In order to determine the precise dose of electromagnetic radiation for microwave irradiation of animals, an in vivo electric field measurement system was designed for use in rats exposed to 1 800 MHz microwave radiation. The parameters of the measurement system, such as directionality, measuring range, sensitivity, and response were tested using solutions with different dielectric properties. The electric field measurement range and sensitivity of the system were 1.75~529.33 V/m and 0.20 V/m, respectively. Compared with other equipment used for measuring electromagnetic exposure, this system had smaller volume and lower limit of detection, which was advantageous for measuring electric fields in media and in animals. In a homogeneous medium, the voltage-electric field response coefficient decreased as the relative permittivity increased, and the coefficient only a small change when the relative permittivity was higher than 20. The values of electric fields in the brain and liver of rats exposed to 1 800 MHZ microwave radiation were measured and compared with the results of numerical calculations; both were found to be in good agreement.

Key words: Microwave radiation, Electric-field measurement, In vivo

CLC Number: 

  • TL72