HIGHLIGHTS
- who: X-ray and collaborators from the Berkeley National Laboratory, Cyclotron Road, Berkeley, CA, USA have published the paper: Derivation of closed-form ellipsoidal X-ray mirror shapes from Fermat`s principle, in the Journal: (JOURNAL)
- what: The authors develop two congruent solutions for generalized ellipse descriptions, differing by coordinate transformations, limited to rotation and translation.
- future: The authors use the convention that x is the sagittal direction y is the direction of propagation (horizontal on the page) and z is the surface height direction (vertical on the page).
SUMMARY
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