布鲁克 BRUKER D8 Focus X 射线衍射仪用途：适用于材料科学、化学、地质等领域，可对多晶材料、粉末、薄膜等样品进行物相分析、晶胞参数测定、晶粒度与结晶度计算，助力材料微观结构表征与性能研究。技术原理：以 Cu 靶陶瓷 X 光管发射 X 射线，照射样品后，依据布拉格定律产生衍射现象。探测器接收衍射信号，经数字化处理计算晶面间距，从而解析晶体结构，实现对样品的分析。性能：X 光管功率≥2.2kW，电压≤50kV，电流≤40mA 。测角仪直径 401mm，2θ 转动范围 - 110° 至 168°，可读最小步长 0.0001°，角度重现性 0.0001° 。探测器如采用林可斯阵列探测器，有 192 个通道，动态范围 1×10⁹cps，最大计数 > 4×10⁷cps，背景低于 0.1cps，能量分辨率 25%，探测效率 > 98% 。

Product Name: Bruker BRUKER D8 Focus X-ray DiffractometerUsage: Suitable for fields such as materials science, chemistry, and geology. It can perform phase analysis, unit cell parameter determination, grain size and crystallinity calculation on polycrystalline materials, powders, thin films and other samples, contributing to the characterization of material microstructure and performance research.Technical Principle: A Cu target ceramic X-ray tube emits X-rays. After irradiating the sample, diffraction occurs according to Bragg's law. The detector receives the diffraction signals, and through digital processing, the interplanar spacing is calculated, thereby analyzing the crystal structure and realizing the analysis of the sample.Performance: The X-ray tube has a power of ≥2.2kW, a voltage of ≤50kV, and a current of ≤40mA. The goniometer has a diameter of 401mm, a 2θ rotation range from -110° to 168°, a minimum readable step of 0.0001°, and an angular reproducibility of 0.0001°. If a Lynxeye array detector is used, it has 192 channels, a dynamic range of 1×10⁹cps, a maximum count of >4×10⁷cps, a background lower than 0.1cps, an energy resolution of 25%, and a detection efficiency of >98%.