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X-ray scan of a surgical mask

X-ray scan of a surgical mask

In this time of pandemic, the mask was recommended by the WHO as one of the different measures that can limit the spread of the COVID-19.

 

At RX Solutions, as we are specialized in x-ray computed tomography, we decided to investigate the inside structure of a surgical mask. X-ray computed tomography technology is very useful to inspect in a non-destructive way complex component, and inspect the internal structures’ properties. In this case, the micro-structure & filtration properties can easily be studied.

 

The scan was made with an EasyTom XL Ultra 160-230, using the 160 kV x-ray tube to reach 1 µm resolution.  The mask scanned is designed with three different layers. The triple thickness structure can easily be distinguished, showing the layers made of different fibers sizes. As a complementary study, we used a post-processing software called Volume Graphics to perform a transport phenomena study. We simulated the passage of air though the mask.