Larmor SESANS data of FlexiPor nanoporous alumina

SESANS data measured on the Larmor instrument (at the ISIS Neutron and Muon Source, a spallation neutron source) of SmartMembranes FlexiPor Membrane with 100 nm mean pore diameter.

Data are in the current (as of 11 November 2024) SESANS (or *.ses) format. This format includes metadata along with a header with four-column data (spin-echo length in Å, normalized scattering correlation function in Å^{-2} cm^{-1}, error in the normalized scattering correaltion function in the same units, and the neutron wavelength in Å).

The names of the files are the run numbers of the measurement, and the magnet poleshoe angles are given in the DataFileTitle block in the file header. All measurements were made using Larmor's 1 MHz RF system.

Two files are presented per measurement. One (run_sesans.ses) is the data processed using the instrument polarization directly, and the other (run_sesans_tcorr.ses) is the same data after correction using the measured transmission (as in Li et al. 2019 doi:10.1038/s41598-019-44493-9).

本数据集为平均孔径100 nm的SmartMembranes FlexiPor膜的自旋回波小角中子散射（Spin Echo Small Angle Neutron Scattering，SESANS）数据，采集自散裂中子源ISIS中子与缪子源（ISIS Neutron and Muon Source）的Larmor谱仪。

数据采用截至2024年11月11日的SESANS格式（文件扩展名为*.ses）存储。该格式包含元数据与四列表头数据，依次为：自旋回波长度（单位：Å）、归一化散射关联函数（单位：Å⁻² cm⁻¹）、归一化散射关联函数的误差（单位与前述一致），以及中子波长（单位：Å）。

数据文件以测量运行编号命名，文件头的DataFileTitle区块中记录了磁极靴角度。所有测量均采用Larmor谱仪的1 MHz射频系统完成。

每组测量对应两个数据文件：其一为`run_sesans.ses`，为直接基于仪器极化参数处理得到的原始数据；其二为`run_sesans_tcorr.ses`，为依据实测透射率校正后的同组数据，校正方法参照Li等人2019年发表于DOI:10.1038/s41598-019-44493-9的研究成果。