If it's the kind of scanner I think it is, it just uses microwaves to detect any surface-level abnormalities under your clothes. It doesn't scan through your body like an x-ray, and it most certainly does not react to iron levels.
But maybe American airports use super fancy machines that do? I don't know, I haven't gone through an American airport in over a decade.
It uses millimeter wave technology. No xrays are used for scanning people. It does scanning the body looking for abnormalities. If you have any liquid on your clothes or if a woman is on her period and is wearing a pad or a period diaper It will alarm because of the bulk. It was the worst when it rained. Everyone would alarm everywhere because they were wet
I'm guessing terahertz ? It's the wavelength between microwaves and infrared, they go through fabric but not through water, and we're bags of water with fabric around them.
Oh okay, guess I was misinformed with some myth. I heard multiple people say it was a period thing- thats interesting that it detects moisture though! You learn new things everyday.
132
u/Wulfrank 29d ago
If it's the kind of scanner I think it is, it just uses microwaves to detect any surface-level abnormalities under your clothes. It doesn't scan through your body like an x-ray, and it most certainly does not react to iron levels. But maybe American airports use super fancy machines that do? I don't know, I haven't gone through an American airport in over a decade.