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Figure 4
The Type IIA paraboloid focuses a collimated beam to a distance q with the reflected central ray parallel to the y-axis. Type IIB collimates light from a point source at distance p with the incident ray along the y-axis.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 29| Part 4| July 2022| Pages 985-990
https://doi.org/10.1107/S1600577522004593
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