Imaging by parabolic refractive lenses in the hard X-ray range

  title={Imaging by parabolic refractive lenses in the hard X-ray range},
  author={Bruno Lengeler and Christian Schroer and Johannes Tu{\`E} mmler and Boris Benner and Matthias Richwin and Anatoly Snigirev and Irina Snigireva and Michael Drakopoulos},
The manufacture and properties of compound refractive lenses (CRLs) for hard X-rays with parabolic pro®le are described. These novel lenses can be used up to 60 keV. A typical focal length is 1 m. They have a geometrical aperture of 1 mm and are best adapted to undulator beams at synchrotron radiation sources. The transmission ranges from a few % in aluminium CRLs up to about 30% expected in beryllium CRLs. The gain (ratio of the intensity in the focal spot relative to the intensity behind a… CONTINUE READING


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