Results 191 to 200 of about 111,221 (213)

New x-ray telescope design

SPIE Proceedings, 2003
The Solar X-ray Imager (SXI) is a complimentary, add-on instrument designed for use on the next generation of Geostationary Orbiting Environmental Satellites (GOES). Its primary mission is to continuously observe the full solar disc at X-ray wavelengths; including coronal holes, active regions, flares, and coronal mass ejections. For wide-field imaging
Atanassova, Martina, Harvey, James E.
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The Broad Band X-Ray Telescope

Space Science Reviews, 1985
The Broad-Band X-Ray Telescope (BBXRT) has been designed to perform high sensitivity, moderate resolution spectrophotometry of X-ray sources in the 0.3–12 keV band from the Shuttle. It consists of a coaligned pair of high throughput, conical X-ray imaging mirrors, with a cryogenically-cooled, multiple element, Si(Li) spectrometer at the focus of each ...
R. Petre, P. J. Serlemitsos
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X-ray Telescopes

1996
The spectra of stars, even for early-type (hot) stars, fall off steeply in the ultraviolet. The falloff is roughly according to the Wien radiation law that prevails on the short-wavelength side of the black-body radiation peak. Nevertheless, there has been considerable interest in the ultraviolet because many spectral features pertaining to ionized ...
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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. B. Morey, M. B. Savage, Joseph Moody, D. W. Madsen, M. K. Durfee, C. Brown, Branton J. Campbell, Dallin Durfee, E. Hansen, P. W. A. Roming, Paul F. Eastman, K. D. Brady, D. Early, V. Jensen   +13 more
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The X-Ray CCDs Developed for the Joint European X-Ray Telescope

Journal of X-Ray Science and Technology: Clinical Applications of Diagnosis and Therapeutics, 1996
The charge coupled devices (CCDs) developed for the Joint European X-ray Telescope (JET-X) are described in detail. A history of the development program and device performance is given. We present results from a comprehensive study to characterize the x-ray response of the flight model focal plane detectors. The goal of the program is to calibrate the
Owens, A, Abbey, AF, Brauninger, H, Burkert, W, Castelli, C, Chapman, H, Dowson, J, Li, Y, McCarthy, KJ, Pool, P, Sims, MR, Spragg, J, Watson, DJ, Wells, A, Willingale, R   +14 more
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Soft x-ray calibration for the NeXT x-ray telescope

SPIE Proceedings, 2008
We present a plan on soft X-ray calibration for the New Exploration X-ray Telescope (NeXT). Two hard and two soft X-ray telescopes (HXTs/SXTs: see Ogasaka et al. 2008 in this volume) provide images up to 80 keV with a large effective area. Following to the Suzaku X-ray telescope, the mirrors on SXTs are tightly nested to maximize the aperture ...
Yoshito Haba, Takayuki Shirata, Takayuki Hayashi, Takashi Okajima, Manabu Ishida, Kentaro Someya, Yasushi Ogasaka, Ryoko Nakamura, Akihiro Furuzawa, Takuro Satoh, Masaki Suzuki, Yoshitomo Maeda, Akiko Sekiguchi, K. Tamura, Takuya Miyazawa, Takeyuki Osawa, Hideyo Kunieda, Hideyuki Mori, Koujun Yamashita   +18 more
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Monochromatic X-ray source for calibrating X-ray telescopes

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2000
Abstract A quasi-monochromatic X-ray source for calibrating X-ray space telescopes was developed, manufactured and tested. The source consists of a powerful X-ray tube of an open type with changeable anode targets and a regulated double-crystal monochromator.
A Bzhaumikhov, V. Arkadiev, Heinrich Bräuninger, J. Rabe, Norbert Langhoff, Wolfgang Burkert, Andreas Oppitz, H.-E Gorny   +7 more
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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.
G. S. Vaiana, L. van Speybroeck, T. Zehnpfennig, Riccardo Giacconi, W. P. Reidy   +4 more
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Hybrid X-Ray Telescope Systems

SPIE Proceedings, 1986
It has been known for some time that glancing incidence X-ray optics have sharply peaked point response functions. The spatial resolution of Wolter X-ray telescope systems is frequently limited by the performance characteristics of the X-ray detector rather than by the optics, even when high resolution detectors such as photographic emulsions are used.
Richard B. Hoover, David L. Shealy
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Swift x-ray telescope (XRT)

SPIE Proceedings, 2003
The Swift Gamma-Ray Burst Explorer will be launched late in 2003 to make prompt multiwavelength observations of Gamma-Ray Bursts and 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.
Oberto Citterio, Joanne E. Hill, A. Short, John A. Nousek, Alan A. Wells, Guido Chincarini, Gianpiero Tagliaferri, David N. Burrows, Richard M. Ambrosi   +8 more
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