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Figure 4
(a) Chromatic focal shift in the wavelength range 600–900 nm, for geoHEAT lens and f = 1 m BK7 lens, paraxial rays. The dashed line shows the cut-off wavelength above which the chromatic aberrations are significantly reduced. (b) Longitudinal aberration for 640–850 nm along the whole lens aperture (19 mm diameter).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 28| Part 6| November 2021| Pages 1747-1757
https://doi.org/10.1107/S1600577521009231
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