Adjusting x-ray tube focal spot position involves measuring spot position signal, generating deflection signal depending on position signal, applying deflection signal to electron beam deflector

摘要

The method involves regulating the position of the focal spot (11) as the control parameter in a control loop. A focal spot position signal is measured, a deflection signal is generated depending on the focal spot position signal and the deflection signal is applied to a deflection device (9) for deflecting an electron beam (7) in the x-ray tube. AN Independent claim is also included for the following: (a) an arrangement for adjusting the focal spot position of an x-ray tube.