Airport body scanners

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Here are the main types:

1. Millimeter-Wave Scanners: These scanners use millimeter-wave radio frequencies to create a 3D image of the body. They are non-ionizing and considered safe for frequent use. They can detect objects hidden under clothing but do not produce detailed anatomical images.
2. Backscatter X-Ray Scanners: These scanners use low-dose X-rays to create an image of the body by detecting scattered X-rays. They can also detect concealed objects but have raised concerns about radiation exposure, though it’s generally minimal.

Both types of scanners are designed to enhance security by identifying potential threats while maintaining privacy. The images produced by these scanners are typically viewed by security personnel in a way that anonymizes the passenger's identity, focusing on identifying anomalies or concealed items rather than detailed anatomical information.