Radiation therapist Jean Etienne holds a range compensator, which shapes the depth to which the proton beam enters a patient's body to target a tumor.
October 29, 2012 Proton therapy can be targeted much more precisely than regular radiation. The hope is that it translates into far fewer side effects, such as impotence and incontinence. But it also costs twice as much as regular radiation. And there's no proof it's more effective — it could potentially be worse, say some radiation experts.
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Easy does it on the X-ray doses for kids.
May 9, 2012 The Food and Drug Administration is proposing that manufacturers of X-ray machines and CT scanners do more to protect children from radiation exposure. If companies don't take steps to limit X-ray doses, the agency may require a label on their new equipment recommending it not be used on children.
This illustration shows a device made by MammoSite used to deliver targeted doses of radiation as part of brachytherapy.
Courtesy Radiological Society of North America
April 9, 2012 The use of brachytherapy is gaining popularity, but some medical experts worry that not enough research has been done to make sure it works as well as the traditional approach to radiation.
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A sign at Chicago's Midway Airport informs travelers about the millimeter wave scanners used to screen passengers.
Scott Olson/Getty Images
July 21, 2011 Over the next few months the Transportation Security Administration says it will retrofit 241 of its 488 airport scanners with software that's so unrevealing anybody, including passengers, can look at the pictures.
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