The detailed fabrication and performance of the temperature‐gradient analyzers that were simulated by Ishikawa & Baron [(2010). J. Synchrotron Rad.17, 12–24] are described and extended to include both quadratic and 2D gradients. The application of a temperature gradient compensates for geometric contributions to the energy resolution while allowing collection of a large solid angle, ∼50 mrad × 50 mrad, of scattered radiation. In particular, when operating relatively close to backscattering, π/2 − gθ_B = 1.58 mrad, the application of a gradient of 1.32 K per 80 mm improves the measured total resolution from 60 to 25 meV at the full width at half‐maximum, while when operating further from backscattering, π/2 − gθ_B = 6.56 mrad, improvement from 330 to 32 meV is observed using a combination of a gradient of 6.2 K per 80 mm and dispersion compensation with a position‐sensitive detector. In both cases, the operating energy was 15.8 keV and the incident bandwidth was 22 meV. Notably, the use of a temperature gradient allows a relatively large clearance at the sample, permitting installation of more complicated sample environments.

中文翻译：

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用于非共振非弹性X射线散射的温度梯度分析仪

由Ishikawa＆Baron [（2010）模拟的温度梯度分析仪的详细制造和性能。J.同步加速器辐射 [ 17，12–24]被描述并扩展为包括二次和2D梯度。温度梯度的应用补偿了能量分辨率的几何贡献，同时允许收集大的立体角（约50 mrad×50 mrad）的散射辐射。特别是，相对靠近背散射操作时，π/ 2 - Gθ_乙= 1.58毫弧度，每80 1.32ķ毫米的梯度的应用改善了在一半最大值处测得的总分辨率为60〜25兆电子伏的全宽，而从反向散射进一步操作时，π/ 2 - Gθ_乙= 6.56 mrad，结合使用每80 mm 6.2 K的梯度和位置敏感检测器的色散补偿，可以观察到从330 meV改善到32 meV。在这两种情况下，工作能量均为15.8 keV，入射带宽为22 meV。值得注意的是，温度梯度的使用允许在样品处具有相对较大的间隙，从而允许安装更复杂的样品环境。