The 1W2A beamline and small‑angle scattering station at the Beijing Synchrotron Radiation Facility provides SAXS, WAXS, time‑resolved SAXS and GISAXS capabilities for scientific research. The handbook outlines the beamline layout, key physical parameters, and the detector suite (CCD, Vantec 2000 XL, 1D curved gas detector) used for data collection.
Operational sections cover vacuum preparation, optical alignment (monochromator, focusing mirrors, slits), detector control software, sample handling, and safety procedures. Detailed step‑by‑step instructions are provided for both routine experiments and specialized GISAXS measurements, along with data acquisition and storage guidelines. This manual is written in Chinese.
| SAXS measurement range (d) | 1~100 nm |
|---|---|
| Angular resolution (Δ2θ) | ≤ 1 mrad (0.057°) |
| X‑ray wavelength (λ) | ≈ 1.54 Å |
| Beam intensity at sample | ≥ 1×10¹¹ cps |
| Sample‑to‑detector distance (L s‑d) | 0.65–4 m |
New users must complete radiation safety training, pass the exam, and receive a dose card and access badge before entering the experimental hall.