attoPUBLICATIONS brochure_synchrotron_joomag | Page 7
Lensless Imaging with X-Ray Waveguides
A synchrotron generated X-Ray beam was coupled into an X-Ray
waveguide located in the focus of Kirkpatrick-Baez mirrors. The resulting
filtered wave was then used to illuminate a sample coherently, yielding a
magnified hologram of the sample recorded by a pixel detector. Several
linear positioners, goniometers, and rotators were applied for precision
alignment of the waveguide with respect to the sample, which in turn was
mounted on a high-precision tomographic rotation stage.
focusing
mirror
source
sample
waveguide
f
SEM exit of waveguide
z 1
hologram of Siemensstar
detector
z 2
numerical reconstruction
2
5
160
3
Reprinted with permission from S. Kalbfleisch et al., AIP. Conf. Proc., 1234, 433-436 (2010).
© 2010, American Institute of Physics.
100
25 nm
40
40
Characterizing a high resolution, scanning fluorescence
X-ray microscope with attocube interferometer
When developing an X-Ray microscope capable of nm resolution, careful
design is a must. Thermal and mechanical stability of the components and assemblies
has to be followed throughout the process. The FPS shows superior performance
regarding its outstanding stability and its capability of measuring sub-nm
displacements. The senor has a better than 1.25 nm stability over 40 hours, and a better
then 300 pm resolution at 100 Hz bandwidth in a controlled environment. The FPS is
therefore the ideal supplement for the mechanical control of all components used in the
described X-Ray microscope setup achieving a resolution in the order of 40 nm, while the
stability is below 45 nm over the entire time needed for data collection.
Reprinted with permission from E. Nazaretski et al., Rev. Sci. Instrum., 84, 033701 (2013)
© 2013, American Institute of Physics.
100
pixel
160
1.8
4
1.6
2 3
1 2
1
1.4
1.2
1
2
3
x [ µ m]
4
1