| 摘要 |
The present invention relates to an X-ray source for the generation of fluorescent X-rays comprising an electron source ( 1 ) for the emission of electrons ( 6 ) and a target which emits X-rays ( 10 ) in response to the incidence of the electrons ( 6 ), said target comprising a ring-shaped primary target ( 2 ) for the emission of primary X-rays ( 9 ) in response to the incidence of the electrons ( 6 ) and a secondary target ( 3 ) for the emission of fluorescent X-rays ( 10 ) in response to the incidence of the primary X-rays ( 9 ). To obtain an enhanced radiance, it is proposed that the primary target ( 2 ) comprises a liquid metal channel ( 8 ) arranged in radial direction relative to a central axis ( 4 ), and that a liquid metal circulates in the liquid metal channel ( 8 ) during operation of the X-ray source in radial direction from an inner side ( 13 ) to an outer side ( 14 ) of said ring-shaped primary target ( 2 ).
|
