Whole-body exposure of unrestrained small animals to electromagnetic field
Ph.D. student: Ph.D. student: Ing. Lukáš VíšekIng. Lukáš VíšekSupervisor: Supervisor: Ing. Ladislav OpplIng. Ladislav Oppl,, Ph.D. Ph.D.Supervisor specialist: Prof. Jan Vrba, CSc.Supervisor specialist: Prof. Jan Vrba, CSc.
CTU in Prague, Dept. of EM fieldCTU in Prague, Dept. of EM [email protected]@fel.cvut.cz, , [email protected], [email protected]
Outline
Introduction Motivation of doctoral work Exposure system
Introduction
rapidly increased use of wireless personal communication systems (mobile phones, wireless networks, pagers, GPS, etc.)
public concern about the health hazards of radiofrequency EM fields
in vivo and in vitro studies have been conducted
Motivation
the aim - to design, implement and analyze a new type of the whole-body exposure system for biological experiments
novel method to determine an accurate exposure together with the elimination of external influences which can affect results
cooperation with Department of Pathophysiology of Faculty of Medicine in Pilsen, Charles University in Prague
Desired parameters
free movement of animals elimination of stress
uniform exposure accurate dosimetry
low cost, i.e. reduced cost of construction
Exposure system
circular waveguide chamber terminated by matched loads
shielding of electromagnetic field circular polarized wave power balance –
analysis of scattering
parameters ventilation holes
Exposure System
verification of the circular polarized wave inside chamber
determination of relationship between average SAR and varies like growth and orientation of animals
numerical determination of average SAR in conjunction with homogenous animal model and experimental validation based on analysis of measured scattering parameters
development of anatomical model for simulations determination of whole-body averaged SAR