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Proceedings Paper

Computational Techniques For Raytracing And Tolerancing Solar Collectors
Author(s): John Vanderhoff; Christopher King; Richard Wientzen
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Paper Abstract

This paper describes the software that has been developed at Itek for the analysis and tolerancing of solar concentrator optical systems. The software models the conventional as well as the non-imaging components used in high energy solar concentrators. The system model includes an extended solar source, a segmented primary collector, a secondary non-imaging concentrator and a hemispherical receiving surface. Both surface irregularities and alignment of the primary segments are modeled as localized slope perturbations which deviate the surface normal where the geometrical ray intersects the surface. The non-imaging secondary concentrator is input as a single optical surface and a special raytrace code developed such that a ray may have any number of reflections up to a user specified maximum number in transmission through the secondary concentrator. Graphical results are included to illustrate the use of these new codes in analyzing systems with both conventional and non-imaging components. The raytrace procedures developed for the non-imaging secondary concentrator have been used at Itek to analyze grazing incidence x-ray telescope systems. The not obvious connection between codes developed for solar concentrators and their application to x-ray telescopes is explained in this paper.

Paper Details

Date Published: 16 September 1980
PDF: 6 pages
Proc. SPIE 0237, 1980 International Lens Design Conference, (16 September 1980); doi: 10.1117/12.959085
Show Author Affiliations
John Vanderhoff, Itek Corporation (United States)
Christopher King, Itek Corporation (United States)
Richard Wientzen, Itek Corporation (United States)

Published in SPIE Proceedings Vol. 0237:
1980 International Lens Design Conference
Robert E. Fischer, Editor(s)

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