X-Ray Scans Could Pose Cancer Risk

Posted on January 14, 2010 in Health & Medicine, Recent Studies, Technology

X-ray body scanners are designed to make travel safer by detecting bombs or weapons underneath airline passengers’ clothes. However, the plan will deliver small doses of radiation to millions, which some experts say could lead to additional cancer deaths.

The X-ray machines, known as “backscatter scanners,” only deliver a dose of ionizing radiation that amounts to 1 percent or less of the radiation in a dental X-ray. But when travelers pass through the every day, the radiation doses could substantially increase the risk of cancers.

Another type of full-body scanner uses a less powerful form of radiation that is safer for travelers. The scanners, which are currently employed by airports across the country, also provide a less clear image. Several health experts and radiation consultants argue that the radiation doses delivered by backscatter scanners are tiny and the better technology far outweighs the risk. Doses divided into portions among millions would not have the effect as those concentrated on a few people, they say.

Officials at the Transportation Security Administration have already tried out several of the machines, and may purchase hundreds more from the manufacturer. The debate will likely continue as American airports search for better imaging technology.