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Liquid crystals could slash cost of X-rays

发布时间:2019-03-02 09:11:01来源:未知点击:

By Saswato Das 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 and other electronic components, akin to those used in some digital cameras. However,