Development and Application of Assessment Methods for Non-Ionizing Radiation Exposure at Frequencies in Terahertz Range
Project title (German)
Entwicklung und Anwendung von Verfahren zur Bestimmung der Exposition gegenüber nichtionisierender Strahlung mit Frequenzen im Terahertzbereich
Project leader
Prof. Dr. rer. nat. Markus Clemens
(Chair of Electromagnetic Theory)
Prof. Dr. rer. nat. Ullrich Pfeiffer
(Institute for High-Frequency and Communication Technology)
Project members
Prof. Dr.-Ing. Volkert Hansen
Oliver Spathmann, M.Sc.
Konstantin Statnikov, M.Sc.
Dr.-Ing. Joachim Streckert
Keywords
terahertz technology, numerical field dosimetry
Acknowledgement
German Federal Office for Radiation Protection (BfS) under grant number 3610S80001
Project description
The research project funded by the German Federal Office for Radiation Protection (BfS - Bundesamt für Strahlenschutz) is intended to develop measurement and computational methods for assessing the exposure of individuals to commercial terahertz field sources, which are increasingly being used in medical and safety technology. Based on measurement results for the characteristics of practice-relevant immission situations (e.g., power density, directivity, polarization, and beam profile), body-internal exposure profiles for electric field strengths, absorbed powers, and temperature variations are generated with the aid of numerical calculation methods in the frequency range from 100 GHz to 10 THz. These profiles are intended to serve as a basis for proposals os still missing personal protection limits for electromagnetic fields in the terahertz frequency range. In addition, high-resolution simulation models of the skin and other critical organs, such as the eye, are being developed for this frequency range.
Project-related publications
- 2013
- 3.O. Spathmann, V. Hansen, M. Saviz, J. Streckert, M. Zang and M. Clemens, "Estimation of Dielectric Material Properties in THz-Frequency Range Using Effective Medium Theory", EMC Europe 2013, Brugge, Belgium, 02.-06.09.2013, vol. Full paper appeared in IEEEXplore, Conf. Proceedings, pp. 154-159, Sep. 2013.
- 2012
- 2.O. Spathmann, M. Clemens, T. Fiedler, V. Hansen, U. Pfeiffer, M. Saviz, K. Statnikov, J. Streckert and M. Zang, "Attempts for Exposure Assessment in the THz-Frequency Range Using Numerical Computations", International Symposium on Electromagnetic Compatibility (EMC Europe 2012), Sep. 2012.
- 2011
- 1.M. Clemens, T. Fiedler, V. Hansen, U. Pfeiffer, O. Spathmann, K. Statnikov and J. Streckert, "Entwicklung und Anwendung von Verfahren zur Bestimmung der Exposition gegenüber nichtionisierender Strahlung mit Frequenzen im Terahertzbereich (Aufbereitung bereits vorhandener eigener und fremder sowie durch eine zusätzliche Literaturrecherche erschlossener Arbeiten hinsichtlich der für den Frequenzbereich 100 GHz-10 THz im Hinblick auf die Themenstellung des Vorhabens relevanten Kenngrößen)", Zwischenbericht zu dem Bundesamt für Strahlenschutz Forschungsvorhaben 3610S80001, Projektzeitraum 01.05.- 31.08.2011, Jul. 2011. http://www.emf-forschungsprogramm.de/akt_emf_forschung.html/dosi_HF_005.html.
