APD-based x-ray imaging telescope using Fresnel zone plates for extremely high spatial resolution

2005 ◽  
Author(s):  
Michael R. Squillante ◽  
Richard A. Myers ◽  
Mitchell Woodring ◽  
James F. Christian ◽  
Frank Robertson ◽  
...  
Keyword(s):  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Fresnel Zone ◽  
Fresnel Zone Plates ◽  
X Ray ◽  
Zone Plates ◽  
X Ray Imaging ◽  
Imaging Telescope

scholarly journals More are better, but the details matter: combinations of multiple Fresnel zone plates for improved resolution and efficiency in X-ray microscopy

2018 ◽  
Vol 25 (4) ◽  
pp. 1048-1059 ◽  
Author(s):  
Kenan Li ◽  
Chris Jacobsen
Keyword(s):  
High Spatial Resolution ◽  
Fresnel Zone ◽  
Axial Direction ◽  
Optical Modulation ◽  
Beam Direction ◽  
Fresnel Zone Plates ◽  
X Ray ◽  
First Order ◽  
Zone Plates ◽  
Improved Characteristics

Fresnel zone plates used for X-ray nanofocusing face high-aspect-ratio nanofabrication challenges in combining narrow transverse features (for high spatial resolution) along with extended optical modulation along the X-ray beam direction (to improve efficiency). The stacking of multiple Fresnel zone plates along the beam direction has already been shown to offer improved characteristics of resolution and efficiency when compared with thin single zone plates. Using multislice wave propagation simulation methods, here a number of new schemes for the stacking of multiple Fresnel zone plates are considered. These include consideration of optimal thickness and spacing in the axial direction, and methods to capture a fraction of the light otherwise diffracted into unwanted orders, and instead bring it into the desired first-order focus. The alignment tolerances for stacking multiple Fresnel zone plates are also considered.

scholarly journals ZnWO4 Nanoparticle Scintillators for High Resolution X-ray Imaging

Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1721
Author(s):  
Heon Yong Jeong ◽  
Hyung San Lim ◽  
Ju Hyuk Lee ◽  
Jun Heo ◽  
Hyun Nam Kim ◽  
...  
Keyword(s):  
Particle Size ◽  
Zinc Oxide ◽  
High Resolution ◽  
Tungsten Oxide ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
X Ray ◽  
X Ray Imaging ◽  
Average Size ◽  
And Tungsten

The effect of scintillator particle size on high-resolution X-ray imaging was studied using zinc tungstate (ZnWO4) particles. The ZnWO4 particles were fabricated through a solid-state reaction between zinc oxide and tungsten oxide at various temperatures, producing particles with average sizes of 176.4 nm, 626.7 nm, and 2.127 μm; the zinc oxide and tungsten oxide were created using anodization. The spatial resolutions of high-resolution X-ray images, obtained from utilizing the fabricated particles, were determined: particles with the average size of 176.4 nm produced the highest spatial resolution. The results demonstrate that high spatial resolution can be obtained from ZnWO4 nanoparticle scintillators that minimize optical diffusion by having a particle size that is smaller than the emission wavelength.

Investigation on the Preparation of High Precision Multilayer X-ray Fresnel Zone Plates Based on Atomic Layer Deposition Technology

2021 ◽  
Vol 50 (1) ◽  
pp. 156-164
Author(s):  
吴鹿杰 Lujie WU ◽  
文庆涛 Qingtao WEN ◽  
高雅增 Yazeng GAO ◽  
卢维尔 Weier LU ◽  
夏洋 Yang XIA ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
High Precision ◽  
Fresnel Zone ◽  
Atomic Layer ◽  
Fresnel Zone Plates ◽  
X Ray ◽  
Zone Plates ◽  
Layer Deposition ◽  
Deposition Technology

scholarly journals High-efficiency zone-plate optics for multi-keV X-ray focusing

2014 ◽  
Vol 21 (3) ◽  
pp. 497-501 ◽  
Author(s):  
Istvan Mohacsi ◽  
Petri Karvinen ◽  
Ismo Vartiainen ◽  
Vitaliy A. Guzenko ◽  
Andrea Somogyi ◽  
...  
Keyword(s):  
Optical Transmission ◽  
High Efficiency ◽  
Fresnel Zone ◽  
Transmission Function ◽  
Zone Plate ◽  
X Rays ◽  
Fresnel Zone Plates ◽  
X Ray ◽  
Zone Plates ◽  
The Ideal

High-efficiency nanofocusing of hard X-rays using stacked multilevel Fresnel zone plates with a smallest zone width of 200 nm is demonstrated. The approach is to approximate the ideal parabolic lens profile with two-, three-, four- and six-level zone plates. By stacking binary and three-level zone plates with an additional binary zone plate, the number of levels in the optical transmission function was doubled, resulting in four- and six-level profiles, respectively. Efficiencies up to 53.7% focusing were experimentally obtained with 6.5 keV photons using a compact alignment apparatus based on piezoelectric actuators. The measurements have also been compared with numerical simulations to study the misalignment of the two zone plates.

scholarly journals High-acceptance versatile microfocus module based on elliptical Fresnel zone plates for small-angle X-ray scattering

2017 ◽  
Vol 25 (18) ◽  
pp. 21145 ◽  
Author(s):  
Maxime Lebugle ◽  
Marianne Liebi ◽  
Klaus Wakonig ◽  
Vitaliy A. Guzenko ◽  
Mirko Holler ◽  
...  
Keyword(s):  
Small Angle ◽  
Fresnel Zone ◽  
Fresnel Zone Plates ◽  
X Ray ◽  
Zone Plates ◽  
X Ray Scattering ◽  
Ray Scattering

Investigation on Optical Matching of a Soft X-Ray Undulator with Some Condenser Fresnel Zone Plates

1987 ◽  
Vol 26 (Part 2, No. 1) ◽  
pp. L3-L6 ◽  
Author(s):  
Hideki Maezawa ◽  
Akira Mikuni ◽  
Masami Ando ◽  
Taizo Sasaki
Keyword(s):  
Fresnel Zone ◽  
Fresnel Zone Plates ◽  
X Ray ◽  
Zone Plates
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