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Figure 5
Study of the focus depth. (a) The hypothetical focus depth for an optics system without aberrations. The inset represents the horizontal projection of the focus as we cross it. (b) The measured focus depth (filled squares) is of the order of 1 mm if the acceptable increase of the image FWHM is limited to 50%. The calculated focus depth (hollow squares) is also shown. The inset shows that the two slopes observed and calculated at each side of the minimum can be explained by involving an aberration.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 5| Part 5| September 1998| Pages 1250-1257
https://doi.org/10.1107/S0909049598004002
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