X-Ray Optics and Instrumentation / 2010 / Article / Tab 2

Research Article

Elliptically Bent X-Ray Mirrors with Active Temperature Stabilization

Table 2

Mirror curvature change and RMS slope error corresponding to different container temperatures, relative to the initial 21 C state. The corresponding focal change and residual RMS slope error (after compensation) are also given.

T (C)2121.722.222.523.123.523.924.324.825.2

curvature change (10−5 m−1)0−1.81−2.87−2.57−3.17−4.3−5.09−5.17−5.69−6.36
rms slope error (μrad)0.550.700.970.871.001.271.411.471.601.74
required defocus compensation (mm)0.000.100.170.200.250.260.280.300.350.40
rms slope error after defocus compensation (μrad)0.550.560.680.650.710.780.760.870.830.87

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