An anonymous reader writes "Cheap handheld terahertz scanners that do the same thing as those big bulky full-body scanners at the airport could be in your doctor's and dentist's office soon. The Semiconductor Research Corp. has successfully sponsored chip maker Texas Instruments in making cheap CMOS chips that do the same thing as those refrigerator sized full-body scanners at the airport. The resulting handheld versions can be tuned to look inside your teeth in the dentist chair and under you skin at the doctor's office. The best part is that terahertz rays are completely safe, unlike the X-rays used today by dentists and doctors which can cause cancer. Count me in!"
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