Keywords: Safety, Safety, spatial-average SAR; OpenSource Algorithm;
Motivation: IEC 60601-2-33 standard limits the 10 g spatial-average SAR when local transmit RF coils are used. The IEC/IEEE 62704-1 standard defines a procedure for performing the spatial-averaging but open-source implementations of the procedure are not available.
Goal(s): To provide a free, open-source implementation of the spatial-averaging procedure described in the IEC/IEEE 62704-1 standard.
Approach: The spatial-average algorithm is coded in Python-C . Outcomes are verified using test data provided with the IEC/IEEE 62704-1 standard.
Results: Outcomes comply with the IEC/IEEE 62704-1 standard requirements and computation times are found to be reasonable for all the investigated cases.
Impact: The spatial-average SAR implementation enables average SAR computation compliant with IEC/IEEE 62704-1 without using commercial software. Typical applications include post-processing using circuit co-simulation, or to add this capability to EM solvers that lack this feature.
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