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Cited by 3 publications
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“…3): repeating the computation like in the previous section (using Eqs. 3,4,7,8), we obtain the HEW trend shown in Fig. 4 (dashed line).…”
Section: Hew Simulations For the Edge-wfi X-ray Telescopementioning
confidence: 79%
See 1 more Smart Citation
“…3): repeating the computation like in the previous section (using Eqs. 3,4,7,8), we obtain the HEW trend shown in Fig. 4 (dashed line).…”
Section: Hew Simulations For the Edge-wfi X-ray Telescopementioning
confidence: 79%
“…Future X-ray telescopes, like SIMBOL-X 1 , Constellation-X/HXT 2 , NeXT 3 , and XEUS/HXT 4 , will extend the imaging capabilities of present soft X-ray telescopes (Chandra, Newton-XMM, Swift-XRT) to the hard X-ray band (E > 10 keV). A basic feature of these instruments will be a noticeable area in hard X-rays, that will allow a large sensitivity gain and the consequent chance of studying fainter cosmic X-ray sources beyond 10 keV.…”
Section: Introductionmentioning
confidence: 99%
“…In Sect. 4 we deal with a comparison of an application of the two methods to the SIMBOL-X optical module. The results are briefly summarized in Sect.…”
Section: Required Hew (30 Kev) -20 Arcsecmentioning
confidence: 99%
“…The launch of a number of X-ray observatories, in addition to those already operating (Chandra, XMM-Newton, SWIFT), is foreseen in the near future. Some of them, like SIMBOL-X 1 , Constellation-X/HXT 2 , NeXT 3 , XEUS/HXT 4 , will extend the current techniques for X-ray focusing (to date, adopted only below 10 keV) to the hard (E > 10 keV) X-ray band by adopting very shallow incidence angles (0.1 ÷ 0.4 deg) and graded multilayer coatings 5,6 . For example, the SIMBOL-X sensitivity band is 0.5 ÷ 80 keV, with a required angular resolution of 15 ÷ 20 arcsec.…”
Section: Introductionmentioning
confidence: 99%
“…The huge effective area entails, as expected, a large mirror diameter (a few meters) and, because of the shallow reflection angles, a very long focal length. While XEUS was initially conceived with a 50 m focal length [2] , later brought [3] to 35 m, for IXO a 20 m focal length is foreseen, as was to have been for SIMBOL-X [5] , but using a single spacecraft, instead of two in formation flight. The distance between optics and detectors will be kept instead by means of an extendable bench [6] .…”
Section: Introductionmentioning
confidence: 99%