| 摘要 |
The present invention relates to an X-ray source comprising an electron source ( 1 ) for the emission of electrons (E), a target ( 4 ) for the emission of characteristic, substantially monochromatic X-rays (C) in response to the incidence of the electrons (E) and an outcoupling means ( 11 ) for outcoupling of the X-rays. To achieve characteristic, substantially monochromatic X-rays with a high power loadability electrons are incident on a metal foil ( 5 ) of a thickness of less than 10 mum and a base arrangement ( 7, 12 ) is arranged wherein the metal of said metal foil ( 5 ) has a high atomic number allowing the generation of X-rays (C) and the material substantially included in the base arrangement ( 7, 12 ) has a low atomic number not allowing the generation of X-rays (C). The outcoupling means are adapted for outcoupling only X-rays (C) on the side of the metal foil ( 5 ) on which the electrons (E) are incident and which is opposite to the side of the base arrangement ( 7, 12 ) since on this side almost no bremsstrahlung radiation is generated.
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