Hyperboloid-hyperboloid grazing incidence x-ray telescope designs for wide-field imaging applications

2000 ◽  
Author(s):  
James E. Harvey ◽  
Patrick L. Thompson ◽  
Andrey Krywonos
Keyword(s):  
Grazing Incidence ◽  
Wide Field ◽  
X Ray ◽  
Field Imaging ◽  
Wide Field Imaging

Wide-field imaging spectrometer for ESA's future x-ray mission: XEUS

1999 ◽  
Author(s):  
Lothar Strueder ◽  
Robert Hartmann ◽  
Peter Holl ◽  
Josef Kemmer ◽  
Peter Klein ◽  
...  
Keyword(s):  
Wide Field ◽  
Imaging Spectrometer ◽  
X Ray ◽  
Field Imaging ◽  
Wide Field Imaging

Matching A Curved Focal Plane With CCD's: Wide Field Imaging Of Glancing Incidence X-Ray Telescopes

1987 ◽  
Author(s):  
J . A. Nousek ◽  
G. P. Garmire ◽  
G. R. Ricker ◽  
M. w. Bautz ◽  
A. M. Levine ◽  
...  
Keyword(s):  
Focal Plane ◽  
Wide Field ◽  
X Ray ◽  
Field Imaging ◽  
Wide Field Imaging

scholarly journals Wide-field X-ray Optics

1995 ◽  
Vol 151 ◽  
pp. 435-438
Author(s):  
René Hudec ◽  
Adolf Inneman ◽  
Ladislav Pina ◽  
Petr Řehák ◽  
Paul Gorenstein
Keyword(s):  
Field Of View ◽  
Innovative Technology ◽  
Wide Field ◽  
Two Dimensional ◽  
Ray Optics ◽  
X Ray ◽  
Field Imaging ◽  
Wide Field Imaging ◽  
Lobster Eye

AbstractClassical X-ray mirror optics usually has a limited Field of View (FoV) of ∼ 1°. Wide-field imaging can be achieved by lobster-eye type reflecting X-ray optics. We summarise several different approaches and suggest an innovative technology for the production of X-ray reflecting flats and cells necessary to develop one- or two-dimensional wide-field X-ray optics. The technology is based on double-sided, replicated reflecting foils produced by electroforming and CF/composite technologies.

scholarly journals Wide field imaging energy dispersive X-ray absorption spectroscopy

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Peng Qi ◽  
Nazanin Samadi ◽  
Mercedes Martinson ◽  
Olena Ponomarenko ◽  
Bassey Bassey ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Spatial Resolution ◽  
Absorption Spectroscopy ◽  
Energy Dispersive ◽  
Horizontal Line ◽  
Wide Field ◽  
X Ray ◽  
X Ray Absorption ◽  
Field Imaging ◽  
Wide Field Imaging

AbstractA new energy dispersive X-ray absorption spectroscopy (EDXAS) method is presented for simultaneous wide-field imaging and transmission X-ray absorption spectroscopy (XAS) to enable rapid imaging and speciation of elements. Based on spectral K-Edge Subtraction imaging (sKES), a bent Laue imaging system diffracting in the vertical plane was developed on a bend magnet beamline for selenium speciation. The high flux and small vertical focus, forming a wide horizontal line beam for projection imaging and computed tomography applications, is achieved by precise matching of lattice plane orientation and crystal surface (asymmetry angle). The condition generating a small vertical focus for imaging also provides good energy dispersion. Details for achieving sufficient energy and spatial resolution are demonstrated for both full field imaging and computed tomography in quantifying selenium chemical species. While this system has lower sensitivity as it uses transmission and may lack the flux and spatial resolution of a dedicated focused beamline system, it has significant potential in rapid screening of heterogeneous biomedical or environmental systems to correlate metal speciation with function.

scholarly journals Camera-based localization microscopy optimized with calibrated structured illumination

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Martin Schmidt ◽  
Adam C. Hundahl ◽  
Henrik Flyvbjerg ◽  
Rodolphe Marie ◽  
Kim I. Mortensen
Keyword(s):  
Data Analysis ◽  
Super Resolution ◽  
Wide Field ◽  
Structured Illumination ◽  
Uniform Illumination ◽  
Localization Microscopy ◽  
Localization And Tracking ◽  
Field Imaging ◽  
Wide Field Imaging ◽  
Localization Information

AbstractUntil very recently, super-resolution localization and tracking of fluorescent particles used camera-based wide-field imaging with uniform illumination. Then it was demonstrated that structured illuminations encode additional localization information in images. The first demonstration of this uses scanning and hence suffers from limited throughput. This limitation was mitigated by fusing camera-based localization with wide-field structured illumination. Current implementations, however, use effectively only half the localization information that they encode in images. Here we demonstrate how all of this information may be exploited by careful calibration of the structured illumination. Our approach achieves maximal resolution for given structured illumination, has a simple data analysis, and applies to any structured illumination in principle. We demonstrate this with an only slightly modified wide-field microscope. Our protocol should boost the emerging field of high-precision localization with structured illumination.

scholarly journals Protocol for constructing an extensive cranial window utilizing a PEO-CYTOP nanosheet for in vivo wide-field imaging of the mouse brain

2021 ◽  
Vol 2 (2) ◽  
pp. 100542
Author(s):  
Taiga Takahashi ◽  
Hong Zhang ◽  
Kohei Otomo ◽  
Yosuke Okamura ◽  
Tomomi Nemoto
Keyword(s):  
Mouse Brain ◽  
Wide Field ◽  
Cranial Window ◽  
Field Imaging ◽  
Wide Field Imaging

scholarly journals The Virmos Project

1998 ◽  
Vol 11 (1) ◽  
pp. 492-492
Author(s):  
D. MacCagni ◽  
O. Le Fèvre ◽  
G. Vettolani ◽  
D. Mancini ◽  
J.P. Picat ◽  
...  
Keyword(s):  
Large Scale ◽  
Large Scale Structure ◽  
Scale Structure ◽  
Structure Evolution ◽  
Wide Field ◽  
Look Back ◽  
Field Imaging ◽  
Wide Field Imaging

Large and deep spectroscopic samples of galaxies are essential to study galaxies and large scale structure evolution out to look-back times ~ 10% the current age of the vmiverse. Keeping this scientific and observational goal in mind, we designed and are presently building two wide-field imaging spectrographs to be installed at the Nasmyth foci of the ESO-VLT Unit Telescopes 3 and 4.

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