SAR (what is the meant of the negative sign in SAR )
Altair EmployeeWhen I applied EM wave on breast model(has tumor) and request SAR(average and by medium), It appeared in POSTFEKO that SAR in tumor region has negative value . What is the meant of the negative sign in SAR value .
| frequency | 30Hz |
| Average SAR by whole volume | 3331.7 W/Kg |
| Skin | 32053.8 W/Kg |
| Fat | 1252.37 W/Kg |
| Normal | 621967 W/Kg |
| Tumor | -315.69 W/Kg |
Answers
-
This does sound strange. Could you attach your model please?
0 -
I noticed that the frequency in your table is shown as 30 Hz. This seems very low. Is this value correct?
0 -
Altair Forum User said:
I noticed that the frequency in your table is shown as 30 Hz. This seems very low. Is this value correct?
yes, it is correct . I want to work in frequency 30Hz. The problem is, SAR is function in conductivity,density of media and the absolute value of electric fuild as the user manual said. That means , it can not give negative value, so this value is totally wrong . Are that right, or this sign can be as an indication for something .
0 -
0