A new photon‐counting camera based on hybrid pixel technology has been developed at the SOLEIL synchrotron, making it possible to implement pump–probe–probe hard X‐ray diffraction experiments for the first time. This application relies on two specific advantages of the UFXC32k readout chip, namely its high frame rate (50 kHz) and its high linear count rate (2.6 × 10⁶ photons s⁻¹ pixel⁻¹). The project involved the conception and realization of the chips and detector carrier board, the data acquisition system, the server with its specific software, as well as the mechanical and cooling systems. This article reports on in‐laboratory validation tests of the new detector, as well as on tests performed at the CRISTAL beamline within the targeted experimental conditions. A benchmark experiment was successfully performed, showing the advantages of the pump–probe–probe scheme in correcting for drifts of the experimental conditions.

中文翻译：

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在SOLEIL同步加速器上开发的第一个泵浦-探头-硬X射线衍射实验用2D混合像素探测器

SOLEIL同步加速器已经开发了一种基于混合像素技术的新型光子计数相机，这使得首次实施泵浦-探针-探针硬X射线衍射实验成为可能。此应用程序依靠UFXC32k读出芯片的两个特定优点，即其高帧频（50 kHz）和其高线性计数率（2.6×10 ⁶ 光子s ^-1 像素^-1）。该项目涉及芯片和检测器载板的概念和实现，数据采集系统，带有特定软件的服务器以及机械和冷却系统。本文报告了新探测器的实验室内验证测试，以及在目标实验条件下在CRISTAL光束线上进行的测试。成功进行了基准实验，显示了泵-探针-探针方案在校正实验条件漂移方面的优势。