A New Type of X‐ray Condenser Lenses with Large Apertures Fabricated by Rolling of Structured Films

In order to meet the demand for X‐ray lenses with large apertures and, hence, photon flux, a new type of X‐ray lenses has been developed: Rolled prismatic X‐ray lenses feature a vast number of refracting surfaces to increase transparency and aperture, respectively. Prototypes of such lenses have been fabricated by molding and rolling of a structured polyimide film. In this work, rolled prismatic X‐ray lenses are pictured, and results of first tests performed at the ANKA storage ring in Karlsruhe are presented.