X-ray diffraction dataset for experimental noise filtering

X-ray diffraction data set for the training of noise filtering algorithms. The data set contains groups of low- and high-counting statistics pairs. The sampling times are mostly 1 (20) seconds for low (high) counting data. Three files in HDF5 format are provided, corresponding to a training, validation and test data set. Each data group contains sequences of 41 consecutive frames, corresponding to a scan along the reciprocal h-direction. Next to the raw data, sampling times and monitor values are included. The test data set additionally contains denoised low-count frames obtained from a pre-trained neural network. The data has been recorded on a La1.88Sr0.12CuO4 single crystal at the beamline P21.1 at the PETRA III storage ring at DESY in Hamburg, Germany. The scattering intensities were recorded using Dectris Pilatus 100K CdTe detector. The diffractometer was operated with 100 keV photons and the sample was cooled to T ~ 30 K. The data contains different signals such as weak 2D charge density wave order, fundamental Bragg peaks, powder lines, spurions and dead pixels.

用于噪声过滤算法训练的X射线衍射（X-ray diffraction）数据集。本数据集包含多组低计数统计与高计数统计配对样本，其中低计数数据的采样时长多为1秒，高计数数据则多为20秒。共提供三个HDF5格式文件，分别对应训练集、验证集与测试集。每个数据组包含41帧连续序列，对应沿倒易h方向的扫描。除原始数据外，数据集还包含采样时长与监视器数值。测试集额外包含由预训练神经网络生成的降噪低计数帧。数据采集自德国汉堡DESY的PETRA III储存环P21.1光束线处的La1.88Sr0.12CuO4单晶样品，散射强度采用Dectris Pilatus 100K CdTe探测器记录。衍射仪以100 keV光子运行，样品被冷却至约30 K。数据包含多种信号，例如弱二维电荷密度波序、本征布拉格峰、粉末谱线、伪峰与死像素。