The feasibility of using traction forces to produce mechanical stretching/shrinkage in a perfect Si 400 single crystal is explored theoretically (by finite element analysis and dynamical theory of X-ray diffraction) and experimentally in order to use it as an angular static interplanar-distance (d-spacing) tunable monochromator, in the Bragg case. It is shown that, with traction forces of ∼100 N and an appropriate pre-load, it is possible to scan, with a linear response and reproducibility of ∼5%, a 30 eV bandwidth, which corresponds to a d-spacing scan of 7 × 10⁻³ Å.

中文翻译：

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完美单晶的机械拉伸：通往 d 间距可调谐 X 射线单色仪的途径

在理论上（通过有限元分析和 X 射线衍射的动力学理论）和实验探索了使用牵引力在完美的 Si 400 单晶中产生机械拉伸/收缩的可行性，以便将其用作角静态晶面间距( d -spacing) 可调单色器，在布拉格的情况下。结果表明，在约 100 N 的牵引力和适当的预载荷下，可以以约 5% 的线性响应和可重复性扫描 30 eV 带宽，这对应于d间距扫描7 × 10 ^-3 埃。