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Figure 2
Experimental schemes for measuring Bragg reflectivity (with APD) and Bragg diffraction topography maps in transmission (with CMOS) of irradiated diamond single crystal C* using 23.8 keV X-rays with a [\Delta E] ≃ 1 meV bandwidth, at the APS beamline 30-ID. HHLM = high-heat-load monochromator (1 eV bandwitdh); HRM = high-resolution monochromator (1 meV bandwidth); C* = diamond single crystal set into the (13 3 3) Bragg backreflection with a scattering angle π − 2Θ (Θ = 1 mrad); APD = avalanche photodiode; A = circular (30 µm-diameter) aperture used for the reflectivity measurements with the APD; CMOS = two-dimensional detector used for the topography measurements. See text for more details.

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