Assessment of specific energy absorption rate (SAR) in the head from a TETRA handset
| Autor: | Mohammed Khalid, P J Dimbylow, Simon Mann |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Digital private mobile radio
Radio Waves Computer science Radiation Dosage Models Biological Risk Assessment Sensitivity and Specificity Handset law.invention Radiation Protection Terrestrial Trunked Radio law Occupational Exposure Humans Computer Simulation Linear Energy Transfer Radiology Nuclear Medicine and imaging Radiometry Monopole antenna Radiological and Ultrasound Technology biology business.industry Electrical engineering Reproducibility of Results biology.organism_classification Police United Kingdom Equipment Failure Analysis Specific energy absorption Tetra Head (vessel) business Telecommunications Head Cell Phone |
| Zdroj: | Physics in Medicine and Biology. 48:3911-3926 |
| ISSN: | 1361-6560 0031-9155 |
| DOI: | 10.1088/0031-9155/48/23/008 |
| Popis: | Finite-difference time-domain (FDTD) calculations of the specific energy absorption rate (SAR) from a representative TETRA handset have been performed in an anatomically realistic model of the head. TETRA (Terrestrial Trunked Radio) is a modern digital private mobile radio system designed to meet the requirements of professional users, such as the police and fire brigade. The current frequency allocations in the UK are 380-385 MHz and 390-395 MHz for the public sector network. A comprehensive set of calculations of SAR in the head was performed for positions of the handset in front of the face and at both sides of the head. The representative TETRA handset considered. operating at 1 W in normal use, will show compliance with both the ICNIRP occupational and public exposure restrictions. The handset with a monopole antenna operating at 3 W in normal use will show compliance with both the ICNIRP occupational and public exposure restrictions. The handset with a helical antenna operating at 3 W in normal use will show compliance with the ICNIRP occupational exposure restriction but will be over the public exposure restriction by up to approximately 50% if kept in the position of maximum SAR for 6 min continuously. |
| Databáze: | OpenAIRE |
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