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Scenarios approach to the electromagnetic exposure: the case study of a train compartment.

Paffi A, Apollonio F, Pinto R, Liberti M - Biomed Res Int (2015)

Bottom Line: Previous studies identified the train compartment as the place where people can experience the highest exposure levels (still below the international guideline limits) to electromagnetic fields in the radiofrequency range.Here a possible scenario of a train compartment has been reproduced and characterized, both numerically and experimentally.A good agreement between the simulated electric field distributions and measurements has been found.

View Article: PubMed Central - PubMed

Affiliation: Department of Information Engineering, Electronics and Telecommunications, Sapienza University of Rome, 00184 Rome, Italy ; Italian Inter-University Center of Electromagnetic Fields and Biosystems (ICEmB), 16145 Genoa, Italy.

ABSTRACT
Previous studies identified the train compartment as the place where people can experience the highest exposure levels (still below the international guideline limits) to electromagnetic fields in the radiofrequency range. Here a possible scenario of a train compartment has been reproduced and characterized, both numerically and experimentally. A good agreement between the simulated electric field distributions and measurements has been found. Results indicate that the higher values of exposure in specific positions inside the train compartment depend on the number of active cell phones, the bad coverage condition, the cell orientation, and the presence of metallic walls. This study shows that the proposed approach, based on the scenarios characterization, may efficiently support the assessment of the individual electromagnetic exposure.

No MeSH data available.


Related in: MedlinePlus

Simulated /E/ fields generated by the four cell phones in vertical configuration on the planes at 80 cm (a) and 120 cm (b) in the presence of metallic walls with the window at 150 cm of quote.
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fig7: Simulated /E/ fields generated by the four cell phones in vertical configuration on the planes at 80 cm (a) and 120 cm (b) in the presence of metallic walls with the window at 150 cm of quote.

Mentions: Figure 7 shows the /E/ field distributions at the quotes of 80 cm (panel (a)) and 120 cm (panel (b)) for the window starting at 150 cm of quote. As evident from Figure 7, the maximum E field values increase with respect to the case in the absence of metallic walls; this increase reaches 15 dB for the 120 cm plane in several points depending on the relative position of the cell phones with respect to the metallic walls. Indeed, Figure 7 shows standing waves due to the wave reflections at the boundaries and the consequent presence of space regions where the fields combine in a constructive way.


Scenarios approach to the electromagnetic exposure: the case study of a train compartment.

Paffi A, Apollonio F, Pinto R, Liberti M - Biomed Res Int (2015)

Simulated /E/ fields generated by the four cell phones in vertical configuration on the planes at 80 cm (a) and 120 cm (b) in the presence of metallic walls with the window at 150 cm of quote.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4352733&req=5

fig7: Simulated /E/ fields generated by the four cell phones in vertical configuration on the planes at 80 cm (a) and 120 cm (b) in the presence of metallic walls with the window at 150 cm of quote.
Mentions: Figure 7 shows the /E/ field distributions at the quotes of 80 cm (panel (a)) and 120 cm (panel (b)) for the window starting at 150 cm of quote. As evident from Figure 7, the maximum E field values increase with respect to the case in the absence of metallic walls; this increase reaches 15 dB for the 120 cm plane in several points depending on the relative position of the cell phones with respect to the metallic walls. Indeed, Figure 7 shows standing waves due to the wave reflections at the boundaries and the consequent presence of space regions where the fields combine in a constructive way.

Bottom Line: Previous studies identified the train compartment as the place where people can experience the highest exposure levels (still below the international guideline limits) to electromagnetic fields in the radiofrequency range.Here a possible scenario of a train compartment has been reproduced and characterized, both numerically and experimentally.A good agreement between the simulated electric field distributions and measurements has been found.

View Article: PubMed Central - PubMed

Affiliation: Department of Information Engineering, Electronics and Telecommunications, Sapienza University of Rome, 00184 Rome, Italy ; Italian Inter-University Center of Electromagnetic Fields and Biosystems (ICEmB), 16145 Genoa, Italy.

ABSTRACT
Previous studies identified the train compartment as the place where people can experience the highest exposure levels (still below the international guideline limits) to electromagnetic fields in the radiofrequency range. Here a possible scenario of a train compartment has been reproduced and characterized, both numerically and experimentally. A good agreement between the simulated electric field distributions and measurements has been found. Results indicate that the higher values of exposure in specific positions inside the train compartment depend on the number of active cell phones, the bad coverage condition, the cell orientation, and the presence of metallic walls. This study shows that the proposed approach, based on the scenarios characterization, may efficiently support the assessment of the individual electromagnetic exposure.

No MeSH data available.


Related in: MedlinePlus