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PAPERS

21/11/2011

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Local Tissue Temperature Increase of a Generic Implant Compared to the Basic Restrictions Defined in Safety Guidelines

Adamos Kyriakou, Andreas Christ, Esra Neufeld, and Niels Kuster, Bioelectromagnetics, Volume 33, Issue 5, pp. 366–374, July 2012, online November 21

 
PAPERS

21/10/2011

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Influence of the Hand on the Specific Absorption Rate in the Head

Chung-Huan Li, Mark Douglas, Erdem Ofli, Benoit Derat, Sami Gabriel, Nicolas Chavannes, and Niels Kuster, IEEE Transactions on Antennas and Propagation, Volume 60, Issue 2, pp. 1066–1074, February 2012, online October 21, 2011

 
PAPERS

22/09/2011

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Local SAR Enhancements in Anatomically Correct Children and Adult Models as a Function of Position within 1.5T MR Body Coil

Manuel Murbach, Eugenia Cabot, Esra Neufeld, Marie-Christine Gosselin, Andreas Christ, Klaas Prüssmann, and Niels Kuster, Progress in Biophysics and Molecular Biology, Volume 107, Issue 3, pp. 428–433, December, 2011. Online September 22

 
Application of an Induced Field Sensor for Assessment of Electromagnetic Exposure from Compact Fluorescent Lamps
31/08/2011

Application of an Induced Field Sensor for Assessment of Electromagnetic Exposure from Compact Fluorescent Lamps

Jagadish Nadakuduti, Mark Douglas, Myles Capstick, Sven Kühn, and Niels Kuster, Bioelectromagnetics, Volume 33, Issue 2, pp. 166–175, February 2012. Online August 31, 2011


The development of instrumentation and procedures for the electromagnetic exposure assessment of compact fluorescent lamps (CFLs) is investigated. The incident and induced fields from 11 CFLs have been measured in the 10 kHz–1 MHz range. Commercially available equipment was used to measure the incident fields, while a novel sensor was built to assess the induced fields in humans. Incident electric field levels significantly exceed the ICNIRP reference levels at close distances for some sources, while the induced fields are within the ICNIRP basic restrictions. Maximum current densities for CFLs are comparable to the limits (in the range of 9% to 56%), demonstrating the need for measurements to establish compliance. For the frequency range investigated, the induced fields were found to be considerably higher for CFLs than for incandescent light bulbs, while the exposure from the two LED bulbs was low. The proposed instrumentation and methods offer several advantages over an existing measurement standard, and the measurement uncertainty is significantly better than the assessment of electric and magnetic fields at close distances.

The scientific and technical impact of the study can be summarized as:

  • Scientifically sound instrumentation, methods and procedures have been developed for the EM exposure assessment of CFLs.
  • The ICNIRP reference levels can be exceeded in close vicinity of the light bulbs, and the incident fields greatly overestimate the induced exposure.  
  • Therefore, the measurement of incident fields, using standard free-space equipment or IEC 62493, is inadequate for human exposure assessment.
  • A novel induced field sensor has been developed by the authors. The induced fields are correlated to exposure in human models using numerical simulations.
  • Due to the relatively high induced fields from the tested CFLs, induced field measurements are needed to demonstrate compliance of a light bulb with the ICNIRP basic restrictions.
PAPERS

15/08/2011

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Mechano-Chemical Simulation of a Solid Tumor Dynamics for Therapy Outcome Predictions

Sven Hirsch, Dominik Szczerba, Bryn Lloyd, Michael Bajka, Niels Kuster, and Gabor Szekely, International Journal for Multiscale Computational Engineering, Volume 9, Issue 2, pp. 231–241, 2011, online August 15

 
PAPERS

12/08/2011

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Head Exposure System for a Human Provocation Study to Assess the Possible Influence of UMTS-Like Electromagnetic Fields on Cerebral Blood Circulation Using Near-Infrared Imaging

Hugo Lehmann, Laurent Pollara, Sonja Spichtig, Sven Kühn, and Martin Wolf, Bioelectromagnetics, Volume 33, Issue 2, pp. 124–133, February 2012. Online August 12, 2011

 
PAPERS

09/08/2011

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pasche@itis-usa.org

 

Treatment of Advanced Hepatocellular Carcinoma with Very Low Levels of Amplitude-Modulated Electromagnetic Fields

Frederico P. Costa, André Cosme de Oliveira, Roberto Meirelles, Marcel C.C. Machado, Tatiana Zanesco, Rodrigo Surjan, Maria Cristina Chammas, Manoel de Souza Rocha, Desiree Morgan, Alan Cantor, Jacquelyn Zimmerman, Ivan Brezovich, Niels Kuster, Alexandre Barbault, and Boris Pasche, British Journal of Cancer, Volume 105, Number 5, pp. 640–648, August 23, 2011. Online August 9

 
PAPERS

15/07/2011

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Children and Adults Exposed to Electromagnetic Fields at the ICNIRP Reference Levels: Theoretical Assessment of the Induced Peak Temperature Increase

Jurriaan F. Bakker, Margarethus M. Paulides, Esra Neufeld, Andreas Christ, Niels Kuster, Gerard C. van Rhoon, Physics in Medicine and Biology, Volume 56, Number 15, pp. 4967–4990, August, 2011, online July 19

 
PAPERS

06/07/2011

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Analysis of the Local Worst-Case SAR Exposure Caused by an MRI Multi-Transmit Body Coil in Anatomical Models of the Human Body

Esra Neufeld, Marie-Christine Gosselin, Manuel Murbach, Andreas Christ, Eugenia Cabot and Niels Kuster, Physics in Medicine and Biology, Volume 56, Number 15, pp. 4649–4659, August, 2011, online July 6

 
 
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