Results 221 to 230 of about 5,433 (258)

Goldhelox: A Soft X-Ray Solar Telescope

Journal of X-Ray Science and Technology, 1995
The Goldhelox Project is the construction and use of a near-normal incidence soft x-ray robotic solar telescope by undergraduate students at Brigham Young University. Once it is completed and tested, it will be deployed from a Get-Away-Special (GAS) canister in the bay of a space shuttle.
D S, Durfee, J W, Moody, K D, Brady, C, Brown, B, Campbell, M K, Durfee, D, Early, E, Hansen, D W, Madsen, D B, Morey, P W, Roming, M B, Savage, P F, Eastman, V, Jensen   +13 more
openaire   +2 more sources

Equal-curvature grazing-incidence x-ray telescopes

Applied Optics, 2003
We introduce a new type of x-ray telescope design, an equal-curvature telescope. We simply add a second-order axial sag to the base grazing-incidence cone-cone telescope. The radius of curvature of the sag terms is the same on the primary surface and on the secondary surface.
Timo T, Saha, William, Zhang
openaire   +2 more sources

Orthogonal Mirror Telescopes for X-ray Astronomy

Applied Optics, 1971
Crossed mirror telescopes are presented as an alternative to the present telescope systems used in x-ray astronomy. These instruments generally have a higher x-ray collecting efficiency but a poorer angular resolution than the more conventional paraboloid-hyperboloid telescopes.
L P, Vanspeybroeck, R C, Chase, T F, Zehnpfennig   +2 more
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The X-Ray Imaging Telescopes on EXOSAT

Space Science Reviews, 1981
The instrument configuration and performance characteristics of the X-ray imaging telescopes on EXOSAT are described. The instrument comprises two fully independent Wolter I imaging telescopes. Each telescope can be used in either of two principal modes: (i) an imaging mode with either a position sensitive proportional counter or a channel multiplier ...
P. A. J. de Korte, J. A. M. Bleeker, A. J. F. den Boggende, G. Branduardi-Raymont, A. C. Brinkman, J. L. Culhane, E. H. B. M. Gronenschild, I. Mason, S. P. McKechnie   +8 more
openaire   +1 more source

Operation of the x-ray telescope eROSITA

SPIE Proceedings, 2010
The X-ray telescope eROSITA is the core instrument besides the Russian ART-XC on the Russian Spektrum-Roentgen- Gamma satellite which will be launched in 2012 to an orbit around the L2 point of the Earth-Sun-system. During both survey and pointing phase the solar panels and the antenna constrain the possible mission scenario.
Fürmetz, M., Predehl, P., Eder, J., Tiedemann, L.   +3 more
openaire   +2 more sources

REX LE X-ray telescope experiment overview

EUV and X-ray Optics: Synergy between Laboratory and Space VI, 2019
© COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only. The paper summarizes the Rocket EXperiment (REX) Lobster Eye (LE) X-ray Telescope payload results. The experiment was performed by the PennState University with X-ray spectroscope on board a Water Recovery X-Ray Rocket (WRXR) launched on 4th April, 2018.
Dániel V., Hudec R., Baca T., Pina L., Inneman A., Marsikova V., Urban M., Nentvich O., Stehlikova V., Tutt J.   +9 more
openaire   +2 more sources

Wolter-Schwarzschild Telescopes for X-Ray Astronomy

Applied Optics, 1973
The resolution of a Wolter-Schwarzschild telescope is intrinsically superior to the resolution of the corresponding paraboloid-hyperboloid telescope. The improvement is important for high resolution and wide field telescope designs having grazing angles larger than about 1.5 degrees .
R C, Chase, L P, Vanspeybroeck
openaire   +2 more sources

The Swift X-Ray Telescope

AIP Conference Proceedings, 2003
The Swift Gamma‐Ray Burst Explorer is designed to make prompt multiwavelength observations of Gamma‐Ray Bursts (GRBs) and their afterglows. The X‐ray Telescope (XRT) provides key capabilities that permit Swift to determine GRB positions with several arcsecond accuracy within 100 seconds of the burst onset.
openaire   +1 more source

Novel X-ray telescopes for wide-field X-ray monitoring

Il Nuovo Cimento C, 2005
We report on fully innovative very wide-field of view X-ray telescopes with high sensitivity as well as large field of view. The prototypes are very promising, allowing the proposals for space projects with very wide-field Lobstereye X-ray optics to be considered.
Hudec, R., Inneman, A., Pina, L., Švéda, L.   +3 more
openaire   +1 more source

Grazing Incidence X-Ray Telescopes

1969
This paper reviews some of the work related to X-ray imaging which has been done at our laboratory over the past several years. Our interest has been to develop high resolution telescopes for studying X-ray emission from the sun and from other celestial X-ray sources.
W. P. Reidy, R. Giacconi, G. Vaiana, L. van Speybroeck, T. Zehnpfennig   +4 more
openaire   +1 more source