A variable fixed-focus constant optimization method for a variable-included-angle varied-line-spacing plane-grating monochromator.
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DOI: 10.1107/s1600577519004569
Abstract: Variable-included-angle varied-line-spacing plane-grating monochromators (VIA-VPGM) have been applied to many beamlines because of the self-focusing and aberration-correction function of the varied-line-spacing grating. Unfortunately, to optimize the variable-line-spacing coefficient of the grating, the fixed-focus constant (Cff)… read more here.
Keywords: included angle; line spacing; method; varied line ... See more keywords