Title of article :
A rotating condenser and off-axis zone plate monochromator for the TXM at the undulator U41 at BESSY II
Author/Authors :
Niemann، نويسنده , , B. and Guttmann، نويسنده , , P. and Hambach، نويسنده , , D. and Schneider، نويسنده , , Manuel G. and Weiك، نويسنده , , D. and Schmahl، نويسنده , , G.، نويسنده ,
Abstract :
The Göttingen transmission X-ray microscope at the low emittance electron storage ring BESSY II uses the concept of dynamical aperture synthesis (Reynolds, DeVelis, Parrent, Thomson (Eds.), The New Physical Optics Notebook, SPIE, 1990, pp. 536–548) for the object illumination. The concept is well suited as a condenser, as it can match any required numerical aperture of the TXM objective. Furthermore, a novel off-axis transmission zone-plate monochromator is included, which can generate a monochromaticity of several thousand in the object illumination.
Keywords :
X-ray condenser , X-ray microscopy , Zone plate monochromator
Journal title :
Astroparticle Physics
