Results 161 to 170 of about 1,373 (198)

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.
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
openaire   +3 more sources

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.
V Arkadiev, H Bräuninger, W Burkert, A Bzhaumikhov, H.-E Gorny, N Langhoff, A Oppitz, J Rabe   +7 more
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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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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 ...
Yoshitomo Maeda, Takayuki Hayashi, Hideyuki Mori, Ryoko Nakamura, Takuro Satoh, Akiko Sekiguchi, Kentaro Someya, Kensuke Tamura, Manabu Ishida, Takeyuki Osawa, Takayuki Shirata, Masaki Suzuki, Yasushi Ogasaka, Akihiro Furuzawa, Yoshito Haba, Takuya Miyazawa, Hideyo Kunieda, Koujun Yamashita, Takashi Okajima   +18 more
openaire   +1 more source

The cooling concept of the x-ray telescope eROSITA

SPIE Proceedings, 2008
eROSITA (extended ROentgen Survey with an Imaging Telescope Array) is the core instrument of the Russian SRG satellite which will be launched in 2011 into an orbit of 600 km height and 30° inclination. It is being developed by the Max-Planck-Institute fur extraterrestrische Physik (MPE) in Garching, Germany.
Fürmetz, M., Pfeffermann, E., Predehl, P., Rohé, C., Tiedemann, L.   +4 more
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

Simulations of X-Ray Telescopes for eROSITA and IXO

AIP Conference Proceedings, 2010
We report on the development of a generic X‐ray instrument simulator to be used in simulations of future X‐ray missions. Based on a Monte Carlo approach the code generates photon events for sources in an X‐ray source catalogue such as the ROSAT all sky survey or the XMM‐Newton slew surveys and then models the imaging and detection process based on the ...
C. Schmid, M. Martin, J. Wilms, I. Kreykenbohm, M. Mühlegger, H. Brunner, M. Fürmetz, P. Predehl, E. Kendziorra, D. Barret, A. Comastri, L. Angelini, M. Cappi   +12 more
openaire   +2 more sources

Wide field x-ray telescope mission

SPIE Proceedings, 2008
The Wide Field X-Ray Telescope (WFXT) will carry out an unprecedented X-ray survey of galaxy clusters and groups, AGNs and QSOs, and galaxies. WFXT is a medium-class strategic mission that will address key questions in both Cosmic Origins and Physics of the Cosmos.
Murray SS, Norman C, Ptak A, Giacconi R, Weisskopf M, Ramsey B, Bautz M, Vikhlinin A, Brandt N, ROSATI, Piero, Weaver H, Allen S, Flanagan K.   +12 more
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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 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
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The Soft X-ray Telescope for the SOLAR-A mission

Solar Physics, 1991
The Soft X-ray Telescope (SXT) of the SOLAR-A mission is designed to produce X-ray movies of flares with excellent angular and time resolution as well as full-disk X-ray images for general studies. A selection of thin metal filters provide a measure of temperature discrimination and aid in obtaining the wide dynamic range required for solar observing ...
S. Tsuneta, L. Acton, M. Bruner, J. Lemen, W. Brown, R. Caravalho, R. Catura, S. Freeland, B. Jurcevich, M. Morrison, Y. Ogawara, T. Hirayama, J. Owens   +12 more
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