− The theory of electromagnetic shielding is based on the waves equations describing the behavior of electromagnetic field in substance and also boundary phenomena by means of Fresnel’s reflection and transmission coefficients. The interaction between electromagnetic radiation and infinite plane shield having finite thickness d, placed in free space in plane waves region depends of material/shi...

This paper describes a new methodology to be utilized in assessing the level of coordination difficulty on the basis of the actual terrain profile between IMT-Advanced (fixed and mobile users) and FSS (Fixed satellite services) for a specific site. This methodology can be use to asses the effectiveness of mitigation techniques based on the use of directional antennas, which takes into account t...

Radio frequency (RF) interference and gradient induced eddy currents have been a major challenge in building a simultaneous PET/MRI system, a new carbon fiber composite material is found to be a good RF shield while introducing negligible gradient eddy currents. It also provides excellent structural support for the PET detector components. This material is therefore promising for the design of ...

− Power distribution lines are a major source of interference in ECG recordings obtained with surface electrodes. Displacement currents coupled to electrodes, their leads and directly into the body, and stray capacitance in power supply transformers, result into differential-mode, common-mode and isolation-mode interference. Shielding electrode leads reduces displacement currents coupled to the...

Solar proton events (SPEs) occur infrequently and unpredictably, thus representing a potential hazard to interplanetary space missions. Biological damage from SPEs will be produced principally through secondary electron production in tissue, including important contributions due to delta rays from nuclear reaction products. We review methods for estimating the biological effectiveness of SPEs...

The response of collisionless plasmas to an applied potential can differ from classic Debye shielding, and when the potential is rapidly applied ~‘‘instantaneous shielding’’!, the shielding can differ from when it is slowly applied ~‘‘adiabatic shielding’’!. Experiments demonstrate that when a test potential well is applied to a one-dimensional pure-electron plasma, instantaneous and adiabatic ...

A method of measuring the shielding effectiveness irregular cavity is proposed in this paper. An electromagnetic topology model established according to characteristics cavity, and field distribution inside are obtained based on simulation cavity. Combined with test regular effectiveness, characterization testing methods given comprehensively, which compared conventional method, verifies how ef...