Abstract:X-ray mirrors are widely used at synchrotron radiation sources for focusing X-rays into focal spots of size less than 1 mm. The ability of the beamline optics to change the size of this spot over a range up to tens of micrometres can be an advantage for many experiments such as X-ray microprobe and X-ray diffraction from micrometre-scale crystals. It is a requirement that the beam size change should be reproducible and it is often essential that the change should be rapid, for example taking less than 1 s, in … Show more
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