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The BCAS has mandated installation of body scanners at the airports. What is/are the technology/technologies prescribed for it by the regulator ?
1. Back Scatter Technology using ionizing radiation.
2. Millimeter-wave (MMW) Technology using non-ionizing electromagnetic radiation.
Select the correct answer using the code given below :
Explanation
The Bureau of Civil Aviation Security (BCAS) has mandated the installation of body scanners at major Indian airports, specifically prescribing Millimeter-wave (MMW) technology. This technology uses non-ionizing electromagnetic radiation, which is considered safe for human health as it does not have enough energy to remove electrons from atoms or molecules. In contrast, Backscatter X-ray technology uses ionizing radiation (low-dose X-rays), which has raised health concerns regarding cumulative exposure and was therefore not selected by the regulator. Additionally, MMW scanners used in airports typically employ Automated Target Recognition (ATR) software to ensure passenger privacy by displaying a generic mannequin figure rather than actual body images. Therefore, only statement 2 is correct.
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