Verification of Parallel C Code for Specific Absorption Rate (SAR) of Electromagnetic Fields (EMF)

Abstract

This report results from a contract tasking Institute of non-ionizing radiation as follows: The main part of the proposed work will be designed to verify the parallel C code with the published results obtained by the Fortran code. To carry out trustful verification of the parallel FDTD code, it is necessary to compare the result of the parallel C code with the results of the Fortran code for different exposure conditions and different anatomical models. In the first step, it is necessary to decide which models will be included and for which exposures the calculation will be run. At least two different anatomical models will be included: human and rat. The calculations will cover the most investigated frequencies in the frequency spectrum 80-3000 MHz as well as some selected frequencies at the upper and lower end of the code capability. In the verification, all important areas of program package will be included: automatic space partitioning algorithm, importing of the tissue data, model data and boundary data, clustering. Beside the verification of the parallel C code, comparison of the time effectiveness of both codes will be prepared. The results show great consistency between the two different implementations of FDTD code across a wide variety of models and exposure scenarios. There are some minor outliers in the whole body SAR comparison and in the localized tissue SAR values. However, these can be explained by the fact, although the model and exposure details were the same, the criteria for finishing a simulation (i.e. the ratio between two successive whole-body SAR values) can be satisfied over the whole body. The values would converge better if much longer simulations were used. The comparison with third party software SEMCAD also showed that the results are very good and SAR values agreed very well. The conclusion is, that the two different implementations of the FDTD algorithm produce very similar results.

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Document Details

Document Type
Technical Report
Publication Date
Jul 06, 2010
Accession Number
ADA531399

Entities

People

  • Peter Gajsek

Organizations

  • University of Ljubljana

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Absorption
  • Algorithms
  • Anatomical Models
  • Body Fluids
  • Boundaries
  • C Programming Language
  • Computer Programming
  • Data Science
  • Electromagnetic Fields
  • Frequency
  • Information Science
  • Measurement
  • Radiation
  • Radio Frequency
  • Simulations
  • Statistical Analysis
  • Verification

Readers

  • Computational Fluid Dynamics (CFD)
  • Nuclear and Radiation Engineering.
  • Software Engineering

Technology Areas

  • Space