PIN - 300kV Filter Wheel Rotation

National Physical Laboratory require a motorised system that allows for the selection and to accurately position various filtration material in the path of the X-ray beam to provide the required radiation qualities in use. The filter material has a significant bearing on the characteristics of the resultant X-ray beam. The existing filter wheel system is over 20 years old and approaching end of working life. This device is integral to the 300kV X-ray facility, as are used for all calibration work undertaken on this facility and additional research projects.