DOCTORS will soon be able to spot cancers in parts of the body where other imaging methods have failed. The technique, which uses a type of radiation known as T-rays, has just been tested on humans for the first time, with striking results.
T-rays penetrate a few millimetres of the skin, a region that other techniques cannot “see”. Optical imaging reveals mainly surface features, while X-rays and MRI scans show deeper tissue. And because T-rays are not ionising, they do not carry the same health risks as X-rays.
Terahertz radiation, as T-rays are properly known, has a frequency between infrared…
