Electromagnetic screens application for population protection from electromagnetic fields and radiation

Abstract

Conclusions 1. Assessment of electromagnetic environment has to be conducted prior to screen material and structure selection; it includes determination of frequency and amplitude parameters of electromagnetic fields and external and internal sources radiation. 2. It is necessary to choose reasonable correlation of attenuation and reflection screen parameters for maximal reduction of this physical factor impact on human. It is efficient to apply graphic dependencies given in this paper. 3. Ferromagnetic electromagnetic screens application is the most acceptable under condition of full blocking of field source or with accounting reflection effect that enables preliminary calculation of shielding efficiency based on geometrical issues exclusively. 4. Variability of shielding coefficients has to be taken into account at electromagnetic shielding application because of diffraction phenomena at the screen edges. 5. In all cases it is necessary to take into account the feasibility of screen production and installation, as well as its cost, which is provided by rationalization of shielding and reflection coefficients selection (i.e. with principle of reasonable adequacy).