view article
Figure 2
Ray paths through a prism lens, when the incident beam is already dispersed in photon energy after passage through a composite prism. The ellipse labelled E0 indicates the position of the virtual source with size s, for which all emitted rays pass the exit slit of opening i to the right. p and q refer to the distances of the lens from the source and from the slit, respectively. The virtual sources of different photon energies (labelled E < E0 and E > E0) are displaced by Δy with respect to the in-focus source. The rays labelled A and B are those rays which cross the optical axis of the lens at the largest offset for a given photon energy.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 20| Part 1| January 2013| Pages 190-193
https://doi.org/10.1107/S0909049512041556
Follow J. Synchrotron Rad.
Sign up for e-alerts
E-alerts
Follow J. Synchrotron Rad. on Twitter
Twitter
Follow us on facebook
Facebook
Sign up for RSS feeds
RSS