X-RAY TUBE WITH TARGET TEMPERATURE SENSOR

摘要

An X-ray tube (1), a medical device (21) comprising an X-ray tube, a program element and a computer readable medium are proposed. The X-ray tube comprises a target (3) adapted for generating X-rays upon impact of an electron beam (7) on a focal spot (9), and a further electrode (11).The further electrode (11) is arranged and adapted for measuring thermo ionic electron emission from the target (3). The X-ray tube is adapted for providing a signal relating to a temperature of the target based on thermo ionic electron emission measured by the further electrode (11).The medical device (21) comprises an X-ray tube (1) according to the invention and a temperature evaluation unit (23) connected to the X-ray tube.