The ROSAT mirror system
The ROSAT mirror system
The ROSAT system of mirrors comprises four nesting Wolter mirrors with a focal length of 2.4 metres. Each of the ring-shaped mirrors measures 50 centimetres in length, and the largest has a diameter of 84 centimetres. The mirrors, manufactured by Carl Zeiss, possess the smoothest mirror surfaces ever produced. This photograph depicts the mirror system from the 'viewpoint' of inbound X-ray radiation.
