| 摘要 |
The description relates to high-transmission condenser-monochromator arrangements providing quasi-monochromatic object illumination and incoherent imaging in X-ray microscopes (5) and are particularly suitable for well-collimated beams from undulators on electron storage rings. As the deflecting optical component, the condenser-monochromator arrangements comprise an off-axis zone plate in transmission (7) or reflection. There is a monochromator diaphragm (11) in the object plane. The exposure aperture of the condenser-monochromator arrangement may be variably set by means of simple plane mirrors (2). The off-axis zone plate (7) and at least one plane mirror (2) are rotated about the optical axis (6) of the X-ray microscope (5) during exposure. In addition, there are fixed means containing a focussing device with focussing ring and a downstream system of one or two hollow conical mirrors. |
