Schroer, C. G.;
Kuhlmann, M.;
Hunger, U. T.;
Günzler, T. F.;
Kurapova, O.;
Feste, S.;
Frehse, F.;
Lengeler, B.;
Drakopoulos, M.;
Somogyi, A.;
Simionovici, A. S.;
Snigirev, A.;
Snigireva, I.;
Schug, C.;
Schröder, W. H.
Contributor:
Schroer, C. G.;
Kuhlmann, M.;
Hunger, U. T.;
Günzler, T. F.;
Kurapova, O.;
Feste, S.;
Frehse, F.;
Lengeler, B.;
Drakopoulos, M.;
Somogyi, A.;
Simionovici, A. S.;
Snigirev, A.;
Snigireva, I.;
Schug, C.;
Schröder, W. H.
Description:
<jats:p>Parabolic refractive x-ray lenses with short focal distance can generate intensive hard x-ray microbeams with lateral extensions in the 100 nm range even at a short distance from a synchrotron radiation source. We have fabricated planar parabolic lenses made of silicon that have a focal distance in the range of a few millimeters at hard x-ray energies. In a crossed geometry, two lenses were used to generate a microbeam with a lateral size of 380 nm by 210 nm at 25 keV in a distance of 42 m from the synchrotron radiation source. Using diamond as the lens material, microbeams with a lateral size down to 20 nm and below are conceivable in the energy range from 10 to 100 keV.</jats:p>