NEMP-interaction with plane multilayer structures

Blumer, W.; Ari, N.

doi:10.1049/ip-a-3.1991.0028

Cited by 4 publications

(3 citation statements)

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“…Recently, there has been increasing concern about electromagnetic compatibility (EMC) and electromagnetic interference (EMI) issues due to nuclear electromagnetic pulse (NEMP) irradiation (Taylor, 1978;King, Blejer, & Wu, 1981;Vance & Uman, 1988;Blumer & Ari, 1991;Chen, Tarn, & Hwang, 1995;Ianoz, Nicoara, & Radasky, 1996;Chen & Liang, 2003, 2004. The intensity of the electric field close to high attitude nuclear explosion (HEMP) generators can reach to a very high value of 60-100 kV/m (Chen, 1990).…”

Section: Introductionmentioning

confidence: 98%

Currents Induced in a Human Body Standing Inside a Metallic House Near a Large Wire-Array Transmission-Line NEMP Simulator

Chen

Wang

2005

Electromagnetics

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This paper describes the time-domain moment method (TDMM) and image method that have been developed for calculations of current densities induced in a humanbody standing inside a metallic rectangular house located near a large wire-array transmission-line nuclear electromagnetic pulse (NEMP) simulator. The TEM-mode transmission line theory and the quasi-static theory are applied in the analysis of electric fields irradiated from the NEMP simulation. The maximum current density induced on the human body with body impedance of 100 M standing inside a perfectly grounded metallic house is found to be 19.7 µA/cm 2 for a distance of 30 m between the metallic house and the NEMP simulator. The value of maximum current density of 19.7 µA/cm 2 is about two times the threshold levels of neuromuscular stimulation under steady-state current flow cases. From study results, it is also found that an average shielding effect of 90% is obtained for the distance between the metallic house and the NEMP simulator when over 30 m. Remarks on health effects based on the calculated data, other scientific sources, and community public health reports are made in the conclusion.

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Section: Introductionmentioning

confidence: 98%

Currents Induced in a Human Body Standing Inside a Metallic House Near a Large Wire-Array Transmission-Line NEMP Simulator

Chen

Wang

2005

Electromagnetics

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“…The findings show the value of our approximated approach. One of the few published works on this topic is a study on the SE of multilayer penetrable structures for a nuclear EM pulse (NEMP) event ; since that work appeared, major advances in computational electromagnetics have permitted far more comprehensive simulation work to guide civil work, and this is the main contribution of this article .…”

Section: Introductionmentioning

confidence: 99%

RFI shielding effectiveness of a soil berm

Tezel

Reader

Davidson

2016

Micro & Optical Tech Letters

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We investigate the electromagnetic (EM) shielding effectiveness (SE) properties of a berm which was created from soil due to construction works near a sensitive radio astronomy site. For the analysis, the berm is approximated as being located above an infinite perfectly electric conducting (PEC) plane. A two‐dimensional cross‐sectional analysis is shown to be sufficient to investigate the SE, which we compute using a computationally efficient single‐layer boundary integral equation method. To verify the method, we compare our results against those obtained by the commercially available Method of Moments (MoM) code, FEKO. Good agreement is demonstrated. It is observed that the berm provides about 25–30 dB SE at heights lower than 5 m and at distances of up to 50 m from the berm. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:17–21, 2017

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“…A theoretical plane-wave matrix model is used to determine the transmission of electromagnetic elds on the material [5,6].…”

Section: Introductionmentioning

confidence: 99%

Shielding Effectiveness of Ceramic Bodies Produced with Natural Zeolite

Kanberoğlu

Demirkıran

2014

Acta Phys. Pol. A

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In this study, electromagnetic shielding e ectiveness of ceramic bodies produced with natural zeolite illuminated by an electromagnetic pulse is investigated. A matrix model is used to calculate the propagation of electromagnetic pulse through sample. Shielding e ectiveness of sample is determined for both transmitted electric and magnetic elds. Mathematical theory of the interaction and the shielding e ectiveness of the sample is determined as a function of frequency, thickness of the material and the incidence angle of electromagnetic pulse. Zeolites used in this study were supplied from ETI Holding Company located in Turkey. Water was added as a binder and disc samples were shaped by uniaxial dry pressing at pressing pressure of 1.5 tone. Samples were red in an electric furnace with a heating rate of 10 • C/min at 1150 • C with a period of 60 min. Electrical measurements are performed to determine the dielectric constant and dielectric loss tangent at 25 • C constant temperature between frequency range from 1 kHz up to 2 MHz.

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NEMP-interaction with plane multilayer structures

Cited by 4 publications

References 1 publication

Currents Induced in a Human Body Standing Inside a Metallic House Near a Large Wire-Array Transmission-Line NEMP Simulator

Currents Induced in a Human Body Standing Inside a Metallic House Near a Large Wire-Array Transmission-Line NEMP Simulator

RFI shielding effectiveness of a soil berm

Shielding Effectiveness of Ceramic Bodies Produced with Natural Zeolite

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