I see Gy∙cm2 and mGy on the monitor of my angiography machine. What do these represent? These are two measured dosimetric quantities that can be used to estimate the radiation risks. Gy∙cm2 is used ...

This evening and the first part of tonight will continue to see dry but cloudy conditions. The odd clearer spell may develop in the early hours, but some mist and fog may also form. Wednesday ...