spectra and lifetime measurement of Thorium229 nuclear isomer doped in calcium fluoride

This dataset contains spectrum measurement and lifetime measurement of Laser Mössbauer spectroscopy of 229Th in CaF2 (arXiv:2509.00041).本数据集包含氟化钙（CaF₂）基质中钍-229（²²⁹Th）的激光穆斯堡尔光谱（Laser Mössbauer spectroscopy）的谱测量与寿命测量数据，对应预印本编号为arXiv:2509.00041。