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Optimizing x-ray optical prescriptions for wide-field applications
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | O'Dell, S. L. Elsner, R. F. Ramsey, B. D. Weisskopf, M. C. |
| Copyright Year | 2010 |
| Description | X-ray telescopes with spatial resolution optimized over the field of view (FOV) are of special interest for missions, such as WFXT, focused on moderately deep and deep surveys of the x-ray sky, and for solar x-ray observations. Here we report on the present status of an on-going study of the properties of Wolter I and polynominal grazing incidence designs with a view to gain a deeper insight into their properties and simply the design process. With these goals in mind, we present some results in the complementary topics of (1) properties of Wolter I x-ray optics and polynominal x-ray optic ray tracing. Of crucial importance for the design of wide-field x-ray optics is the optimization criteria. Here we have adopted the minimization of a merit function, M, which measures the spatial resolution averaged over the FOV: M= ((integral of d phi) between the limits of 0 and 2 pi) (integral of d theta theta w(theta) sigma square (theta,phi) between the limits of 0 and theta(sub FOV)) (integral of d phi between the limits of 0 and phi/4) (Integral of d theta theta w(theta) between the limits of 0 and theta(sub FOV) where w(theta(sub 1) is a weighting function and Merit function: sigma-square (theta, phi) = summation of (x,y,z) [-<(x,y,z)> (exp 2)] is the spatial variance for a point source on the sky at polar and azimuthal off-axis angles (theta,phi). |
| File Size | 719491 |
| Page Count | 13 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20100033128 |
| Archival Resource Key | ark:/13960/t86h9jf1c |
| Language | English |
| Publisher Date | 2010-06-27 |
| Access Restriction | Open |
| Subject Keyword | Astronomy Point Sources Ray Tracing Grazing Incidence Telescopes Sky Surveys Astronomy Field of View X Ray Astronomy Spatial Resolution X Ray Optics Optimization X Ray Telescopes Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Presentation |
