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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Citterio, Oberto
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2014Evaluation of the surface strength of glass plates shaped by hot slumping processcitations
- 2013Accurate integration of segmented x-ray optics using interfacing ribscitations
- 2010The optics system of the New Hard X-ray Mission: design and developmentcitations
- 2009Design and development of the optics system for the NHXM Hard X-ray and Polarimetric Missioncitations
- 2005Recent results on manufacturing of segmented x-ray mirrors with slumped glasscitations
- 2003Replication by Ni electroforming approach to produce the Con-X/HXT hard x-ray mirrorscitations
- 2003The HEXIT (High Energy X-ray Imaging Telescope) balloon-borne mission
- 2002Development of soft and hard x-ray optics for astronomy: progress report II and considerations on material properties for large-diameter segmented optics of future missionscitations
- 2000Integral shell mirrors for the Constellation X-ray mission hard x-ray telescopecitations
- 2000Nickel-replicated multilayer optics for soft and hard x-ray telescopescitations
Places of action
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document
Integral shell mirrors for the Constellation X-ray mission hard x-ray telescope
Abstract
Estimates of background in CZT detectors indicate that even with the beneficial concentration of a focussing telescope measurements in the 20 to 100 keV band of the Constellation X- ray Mission's HXT will become background limited after several thousand seconds of observing. This time is less than the expected exposure of most measurements. Consequently the sensitivity of most if not all observations of the HXT will be background limited. Therefore, the angular resolution should be as good as possible as long as the effective area remains high. We are pursuing a method for fabricating telescopes for the twelve units of HXT that consists of electroforming integral shell substrates, a process that has been highly developed for XMM. We are attempting to adapt this method to higher energy X-rays by employing multilayer coatings, and smaller graze angles, and also reduce the mass of the telescopes from the XMM prescription by employing stronger, lighter alloys. The resolution that XMM has achieved, 15' HPW is an indication of the resolution we can expect....