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

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

scholarly journals The Modernization of the Pulkovo Photographic (Photoelectric) Vertical Circle by a CCD Array

1995 ◽  
Vol 167 ◽  
pp. 333-334
Author(s):  
G. A. Goncharov ◽  
B. K. Bagildinsky ◽  
E. V. Kornilov ◽  
D. D. Polojentsev ◽  
K. V. Rumyantsev ◽  
...  
Keyword(s):  
Focal Plane ◽  
Focal Length ◽  
Wide Field ◽  
List Type ◽  
Type Number ◽  
Pulkovo Observatory ◽  
Vertical Circle ◽  
Ccd Array ◽  
Field Imaging ◽  
Wide Field Imaging

The Zverev photographic vertical circle (PVC) of the Pulkovo observatory is in the process of modernization. The features of the vertical circle are: a)Maksutov mirror-lens optical system with small aberrations and wide passband: aperture: 20 cm, focal length: 200 cm, focal scale: 103 arcsec/mm.b)Very compact instrument: 140 cm total length, 60 cm — tube.c)Wide field: 25 × 25 mm = 40′ × 40′. Wide-field imaging can be combined with meridian observations.d)Easily-reversible instrument: reversing takes less than 30 seconds.e)Two divided vertical circles of glass. Photoelectric circle reading microscopes.f)Photographic micrometer in focal plane. This will be changed with a CCD micrometer.

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 Pickles: A Wide-Field Imaging Tool

1994 ◽  
Vol 161 ◽  
pp. 356-358
Author(s):  
L.W. Fredrick ◽  
G.F. Benedict ◽  
R. Duncombe ◽  
O.G. Franz ◽  
P.D. Hemenway ◽  
...  
Keyword(s):  
Focal Plane ◽  
Wide Field ◽  
Space Telescope ◽  
Cd Rom ◽  
Imaging Tool ◽  
Star Catalogue ◽  
Guide Star ◽  
Field Imaging ◽  
Wide Field Imaging

The program Pickles was developed as an aid for planning HST observations using the Space Telescope Science Institute's Guide Star Catalogue, which was generated from wide-field Schmidt plates. Pickles reads the catalogue from CD-ROM and then displays a one-degree square field. The HST focal plane apertures can then be displayed singly or in any combination which is at the choice of the observer (Fig. 1). The user can generate an aperture of a different type if need be. The stars can be displayed as open or filled circles with their relative sizes indicating their magnitude. Stars or other objects can be added and saved with the field.

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
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