7 December 2006 An x-ray tracing code for polycapillary optics
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Proceedings Volume 5974, International Conference on Charged and Neutral Particles Channeling Phenomena; 597419 (2006) https://doi.org/10.1117/12.640111
Event: International Conference on Charged and Neutral Particles Channeling Phenomena, 2004, Rome, Italy
Abstract
PolyCAD is a CAD program designed for X-ray photon tracing in polycapillary optics. To understand the PolyCAD code and its results, theoretical basis of X-ray transmission by a single cylindrical and conical channel (monocapillarics) are discussed. Then the simplest cases of cylindrically and conically shaped polycapillary optics are examined. PolyCAD allows any type of X-ray source to be simulated like an X-ray tube of finite beam dimensions or an astrophysical object in combination with different kinds of polycapillary optics. The radiation distribution images formed on a screen located at various focal distances are discussed. The good agreement of some of the PolyCAD results with those reported in earlier papers validate the code. In this paper we will show simulations for sources of different types: i) a point-focus, located at finite and infinite distances, ii) a X-ray tube-like sources and iii) three dimensional sources, like a couple of spheres. In the last case we was also able to reconstruct the source objects. Work is in progress to include in the code many other polycapillary optical shapes, such as semi-lenses and full-lenses. In the next future we will consider the wave features of the X-ray propagation inside capillary channels that will allows to complete our code for describing all the peculiarities of radiation propagation. In such away, we will bc able to describe X-ray channeling along curved surfaces and than go down to channeling in nanostructurcs.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dariush Hampai, Sultan B. Dabagov, Giorgio Cappuccio, Giannantonio Cibin, "An x-ray tracing code for polycapillary optics", Proc. SPIE 5974, International Conference on Charged and Neutral Particles Channeling Phenomena, 597419 (7 December 2006); doi: 10.1117/12.640111; https://doi.org/10.1117/12.640111
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