Corelli: Efficient single crystal diffraction with elastic discrimination
Corelli: Efficient single crystal diffraction with elastic discrimination
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Corelli：具有弹性辨别的高效单晶衍射
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
R. Osborn
中科院分区：
文献类型：
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作者：
S. Rosenkranz;R. Osborn
单晶漫散射提供了1-100 nm尺度上的短程相关性的最强大的探针之一，这通常是许多新兴现象的极端场响应的原因。然而，从漫散射数据中精确建模这种复杂的无序提出了严格的实验要求，需要在具有足够动量和能量分辨率的大体积倒易空间上进行测量。在这里，我们讨论了潜在的互相关技术的有效测量单晶漫散射与能量歧视，将实施一种新的仪器，科雷利。利用完整的实验模拟，我们表明，这种技术很容易导致高达50倍的效率增益，与传统的方法相比，用于测量单晶漫散射体积的倒易空间与弹性歧视。
Single crystal diffuse scattering provides one of the most powerful probes of short-range correlations on the 1–100 nm scale, which often are responsible for the extreme field response of many emerging phenomena of great interest. Accurate modeling of such complex disorder from diffuse scattering data however puts stringent experimental demands, requiring measurements over large volumes of reciprocal space with sufficient momentum and energy resolution. Here, we discuss the potential of the cross-correlation technique for efficient measurement of single crystal diffuse scattering with energy discrimination, as will be implemented in a novel instrument, Corelli. Utilizing full experiment simulations, we show that this technique readily leads up to a fifty-fold gain in efficiency, as compared to traditional methods, for measuring single crystal diffuse scattering over volumes of reciprocal space with elastic discrimination.