Evaluation of the electromagnetic field level emitted by medium frequency AM broadcast stations.

Radiat Prot Dosimetry

Regional Agency for Environmental Protection of Tuscany (ARPAT)--Department of Pisa, Via Vittorio Veneto 27, 56127 Pisa, Italy.

Published: February 2005

AI Article Synopsis

  • The paper discusses computational techniques used to estimate electromagnetic fields from telecommunication systems, focusing on methods that vary in complexity and accuracy.
  • It presents a validated code based on the method of moments for analyzing the electromagnetic field from medium-frequency radio communication systems.
  • The results aim to ensure compliance with safety regulations regarding exposure levels, featuring numerical and experimental data from an AM radio transmitter and a future operational system.

Article Abstract

In order to estimate the level of the electromagnetic field produced by telecommunication systems, different computational techniques can be employed whose complexity depends on the accuracy of the final results. In this paper, we present the validation of a code based on the method of moments that allows us to analyse the electromagnetic field emitted by radio-communication systems operating at medium frequencies. The method is able to provide an accurate estimate of the levels of electromagnetic field produced by this type of device and, consequently, it can be used as a method for verifying the compliance of the system with the safe exposure level regulations and population protection laws. Some numerical and experimental results are shown relevant to an amplitude modulated (AM) radio transmitter, together with the results of a forthcoming system that will be operative in the near future.

Download full-text PDF

Source
http://dx.doi.org/10.1093/rpd/nch060DOI Listing

Publication Analysis

Top Keywords

electromagnetic field
16
field produced
8
evaluation electromagnetic
4
field
4
field level
4
level emitted
4
emitted medium
4
medium frequency
4
frequency broadcast
4
broadcast stations
4

Similar Publications

Mapping the myomagnetic field of a straight and easily accessible muscle after electrical stimulation using triaxial optically pumped magnetometers (OPMs) to assess potential benefits for magnetomyography (MMG). Approach: Six triaxial OPMs were arranged in two rows with three sensors each along the abductor digiti minimi (ADM) muscle. The upper row of sensors was inclined by 45° with respect to the lower row and all sensors were aligned closely to the skin surface without direct contact.

View Article and Find Full Text PDF

Nexus: A versatile console for advanced low-field MRI.

Magn Reson Med

January 2025

Department 8.1 - Biomedical Magnetic Resonance, Physikalisch-Technische Bundesanstalt (PTB), Braunschweig and Berlin, Germany.

Purpose: To develop a low-cost, high-performance, versatile, open-source console for low-field MRI applications that can integrate a multitude of different auxiliary sensors.

Methods: A new MR console was realized with four transmission and eight reception channels. The interface cards for signal transmission and reception are installed in PCI Express slots, allowing console integration in a commercial PC rack.

View Article and Find Full Text PDF

Background And Purpose: The objective was to examine the adjuvant effect of active pulsed electromagnetic field (PEMF) versus microwave (MW) therapy, as well as sham PEMF, in addressing pain and improving functionality for treating knee osteoarthritis (KOA).

Methods: This was a double-blind, placebo-controlled, randomized clinical trial. Individuals diagnosed with KOA were assigned to an intervention combining an exercise program (EX) with active PEMF, MW, or sham PEMF.

View Article and Find Full Text PDF

Fabrication of Ag based Surface Enhanced Raman Scattering substrates with periodic mask arrays by electron beam deposition.

Anal Chim Acta

February 2025

Engineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, No.516 Jungong Road, Shanghai, 200093, China.

Background: Surface-enhanced Raman scattering (SERS) has attracted much attention as a powerful detection and analysis tool with high sensitivity and fast detection speed. The intensity of the SERS signal mainly depended on the highly enhanced electromagnetic field of nanostructure near the substrate. However, the fabrication of high-quality SERS nanostructured substrates is usually complicated, makes many methods unsuitable for large-scale production of SERS substrates.

View Article and Find Full Text PDF

Radiofrequency evoked potentials: A new window into the nociceptive system.

Clin Neurophysiol

January 2025

Institute for Research and Development on Bioengineering and Bioinformatics (IBB), CONICET-UNER, Oro Verde, Argentina; Center for Rehabilitation Engineering and Neuromuscular and Sensory Research (CIRINS), National University of Entre Ríos (UNER), Oro Verde, Argentina. Electronic address:

Objective: To describe the cortical evoked potentials in response to radiofrequency stimulation (RFEPs) in human volunteers.

Methods: Seventeen healthy volunteers participated in an experimental session in which radiofrequency (RF) and electrical (ES) stimulation were applied to the dorsum of the hands and feet. EEG was recorded to evaluate evoked responses for each stimulus modality and stimulation site.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!