Highly porous nanoberyllium for X-ray beam speckle suppression.
This paper reports a special device called a `speckle suppressor', which contains a highly porous nanoberyllium plate squeezed between two beryllium windows. The insertion of the speckle suppressor in an X-ray beam allows manipulation of the spatial coherence length, thus changing the effective source size and removing the undesirable speckle structure in X-ray imaging experiments almost without beam attenuation. The absorption of the nanoberyllium plate is below 1% for 1 mm thickness at 12 keV. The speckle suppressor was tested on the ID06 ESRF beamline with X-rays in the energy range from 9 to 15 keV. It was applied for the transformation of the phase-amplitude contrast to the pure amplitude contrast in full-field microscopy.
Immanuel Kant Baltic Federal University, Nevskogo str. 14, Kaliningrad 236041, Russian Federation.
Alexander
A
Goikhman
Immanuel Kant Baltic Federal University, Nevskogo str. 14, Kaliningrad 236041, Russian Federation.
Ivan
I
Lyatun
Immanuel Kant Baltic Federal University, Nevskogo str. 14, Kaliningrad 236041, Russian Federation.
Petr
P
Ershov
European Synchrotron Radiation Facility, BP 220, 38043 Grenoble, France.
Irina
I
Snigireva
Immanuel Kant Baltic Federal University, Nevskogo str. 14, Kaliningrad 236041, Russian Federation.
Pawel
P
Wojda
A. A. Bochvar High-Technology Scientific Research Institute for Inorganic Materials, Rogova str. 5a, Moscow 123098, Russian Federation.
Vladimir
V
Gorlevsky
A. A. Bochvar High-Technology Scientific Research Institute for Inorganic Materials, Rogova str. 5a, Moscow 123098, Russian Federation.
Alexander
A
Semenov
A. A. Bochvar High-Technology Scientific Research Institute for Inorganic Materials, Rogova str. 5a, Moscow 123098, Russian Federation.
Maksim
M
Sheverdyaev
A. A. Bochvar High-Technology Scientific Research Institute for Inorganic Materials, Rogova str. 5a, Moscow 123098, Russian Federation.
Viktor
V
Koletskiy
Immanuel Kant Baltic Federal University, Nevskogo str. 14, Kaliningrad 236041, Russian Federation.
Anatoly
A
Snigirev
X-ray imaging; X-ray microscopy; X-ray speckle; porous nanoberyllium