We previously developed an in-vivo exposure setup for testing the possible promoting effects of 1.5 GHz digital cellular phones on mouse skin carcinogenesis. In this report, we analytically and experimentally evaluated the uncertainty of SARs inside the moose in the exposure setup, which should he affected by the presence of an acrylic holder for restraining the moose as well as the movement of the moose in the holder. The artifact of peak SAR obtained in one cell by FDTD analyses was also investigated. As a result, we found that (1) the peak SAR was increased 16 due to the presence of holder, (2) the peak SAR in one-FOTO cell normally determined from the considered wavelength was overestimated up to 17 in comparison with that spatially averaged from the one-eighth size FDTD cell. In addition, simultaneous measurements of the antenna input and reflection powers revealed that the peak and average SARs vary within ±7 doe to the movement of mouse, which do not almost depend on the mouse weight.
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