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Figure 5
Energy–position correlation in the detector. (a) and (b) are for the on-Rowland case without or with temperature gradient of the analyzer crystal; (c) and (d) are for the off-Rowland geometry without or with temperature gradient. E = 21.747 keV for Si(11 11 11) backreflection case from the ray-tracing results. Optical geometry: L1 = 3 m, l = 200 mm and (a) d = 4.60 mm and (b) d = 3.56 mm are considered here. Contributions from analyzer slope error, σ(x,y) = 20 µrad × 20 µrad, and source size σss(x,y) = 20 µm × 20 µm, are included.

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