Figure 7
STXM mode as implemented on TwinMic: the beam is focused by a microprobe forming zone plate (ZP), and a combination of a central stop (not shown in the figure) and an order-sorting aperture (OSA) transmits only the desired diffracted light onto the specimen. The detection system collects the transmitted photons with a fast-readout CCD (FRCCD) camera through a visible-light-converting system constituted by a phosphor screen (PS), a first lens (Lens), a 45° inclined mirror (Mirror) and an objective lens. A low-energy X-ray fluorescence (LEXRF setup) detector system is also present in slightly backscattering configuration. |