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Effects of Small Oscillations on the Effective Area

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 01 Jan 2009Publisher:AIPJournal:AIP Conference Proceedings
Authors: V. Cotroneo; P. Conconi; G. Cusumano; G. Pareschi; D. Spiga; G. Tagliaferri; Jéro^me Rodriguez; +1 Authors

doi: 10.1063/1.3149474

Effects of Small Oscillations on the Effective Area

Abstract

We analyze the effective area of the Simbol‐X mirrors as a function of the off‐axis angle for small oscillations. A reduction is expected due to: 1) geometrical effects, because some of the photons miss the secondary mirror surface; 2) reflectivity effects, caused by the variation of the coating reflectivity with the incidence angle. The former are related to the length of the two mirror surfaces, and can be reduced by making the secondary mirror longer. The second ones are energy‐dependent, and strongly related to the characteristics of the reflecting coating. These effects are analyzed by means of ray‐tracing simulations in order to optimize the mirror and coating design, aiming to improve the effective area stability.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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