A low-cost way of recording X-ray images electronically could mean cheap medical imaging for hospitals in the developing world (Image: Alix/Phanie/Rex Features)
A LOW-COST way of recording X-ray images electronically could make digital X-rays scanners affordable in the developing world. The method can produce high-resolution digital X-rays for one-tenth of the usual cost.
Digital X-ray machines are prized because the images they produce are simple to analyse, manipulate and store. Most of them work by using a layer of amorphous selenium to convert the X-rays into electric charge. This “charge image” is then recorded using an array of transistors…
