the control evaluation unit 14 may comprise a communication unit for data transmission with an external unit for example the central control unit of the manufacturing plant in addition or as an alternative to the helical scanning mode the control evaluation unit 14 may also perform axial scans and or scans of just one part of a component 12 for example individual slices or at specific positions alternatively or in addition for the identification of internal defects or anomalies of the component 12 the control evaluation unit 14 may also be set up to determine the three dimensional geometric dimensions of the components 12 i e internal and external component structures from the x ray data it is then optionally possible to dispense with a separate coordinate measuring device to shield the surrounding environment against the x ray radiation generated by the x ray tube 24 the system 10 comprises a radiation protection cabin 15 surrounding the testing measuring device 11 the radiation protection cabin 15 comprises a frame 36 which may consist for example of metal tubes or rods and plate shaped wall elements 37 a 37 b 37 c 37 d etc which are merely indicated in fig2 for the top wall 37 a the side wall 37 b remote from the observer the front wall 37 c facing the observer through which the components 12 are conveyed into the protection cabin 15 and the rear wall 37 d remote from the observer through which the.