6533b7d7fe1ef96bd1267cdc
RESEARCH PRODUCT
Spiral conical approximations to double reflection Wolter optics
Daniele SpigaHerbert W. SchnopperTeresa MineoEmanuele PerinatiMarco BarberaAngelo Taibisubject
PhysicsX-Ray telescopes plastic foil ray-tracingbusiness.industryPoint sourceParaxial approximationPhysics::OpticsConical surfaceOpticsSettore FIS/05 - Astronomia E AstrofisicaAnnulus (firestop)Reflection (physics)Focal lengthRay tracing (graphics)businessSpiraldescription
The design of a grazing incidence focusing optic obtained from a spiral approximation to multiple nested cones produces an annular image of a point source. The angular size of the annulus depends mainly on the pitch of the winding and the focal length. For a spiral conical approximation to Wolter optics, the effect is magnified by the double reflection. However, if the two conical spirals are wound one clock-wise and the other counter-clock-wise, then the aberration is partially compensated. We use a ray tracing code to evaluate advantages and disadvantages of this optical design for potential applications of a light weight optics technology based on plastic foils that we are currently investigating.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-07-12 |