European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France.
Laboratoire d'Archéologie Moléculaire et Structurale (LAMS) CNRS UMR 8220, UPMC Univ Paris 06, Sorbonne Université, 5 place Jussieu, 75005 Paris, France.
Molecules. 2022 Mar 20;27(6):1997. doi: 10.3390/molecules27061997.
The European Synchrotron Radiation Facility (ESRF) has recently commissioned the new Extremely Brilliant Source (EBS). The gain in brightness as well as the continuous development of beamline instruments boosts the beamline performances, in particular in terms of accelerated data acquisition. This has motivated the development of new access modes as an alternative to standard proposals for access to beamtime, in particular via the "block allocation group" (BAG) mode. Here, we present the recently implemented "historical materials BAG": a community proposal giving to 10 European institutes the opportunity for guaranteed beamtime at two X-ray powder diffraction (XRPD) beamlines-ID13, for 2D high lateral resolution XRPD mapping, and ID22 for high angular resolution XRPD bulk analyses-with a particular focus on applications to cultural heritage. The capabilities offered by these instruments, the specific hardware and software developments to facilitate and speed-up data acquisition and data processing are detailed, and the first results from this new access are illustrated with recent applications to pigments, paintings, ceramics and wood.
欧洲同步辐射设施（ESRF）最近委托建造了新的超强光源（EBS）。亮度的提升以及光束线仪器的不断发展，提高了光束线的性能，特别是在加速数据采集方面。这促使人们开发了新的访问模式，作为对标准光束时间访问提案的替代方案，特别是通过“块分配组”（BAG）模式。在这里，我们介绍了最近实施的“历史材料 BAG”：一个社区提案，为 10 个欧洲机构在两个 X 射线粉末衍射（XRPD）光束线-ID13 上提供了保证的光束时间，用于 2D 高横向分辨率 XRPD 映射，以及 ID22 用于高角度分辨率 XRPD 整体分析——特别关注应用于文化遗产。详细介绍了这些仪器提供的功能、为促进和加速数据采集和数据处理而进行的特定硬件和软件开发，并用最近在颜料、绘画、陶瓷和木材方面的应用来说明这种新访问方式的第一个结果。
