However, in the presence of an IEMP with high power, using the conformal FDTD method to compute the SAR distribution of the human body inside one metallic cabin with large sizes has not been reported yet, which is very important for carrying out an effective electromagnetic protection for people working in one complex electromagnetic environment.
We further apply this conformal FDTD method to compute SAR distributions of the human body model in one metallic cabin with large sizes illuminated by an external IEMP for different power levels, incident directions and polarizations.
1, the incident IEMP is assumed to be an ultra wideband pulse (UWBP), and its incident E-field can be described by a tripleexponential function as given by 
7, the maximum values of point SAR, 1g SAR, and 10 g SAR all increase monotonously with increasing the E-field amplitude of the incident IEMP.
Certainly, the cabin structure can be based on other designs for real applications, and the incident IEMP can take other forms.