{
  "name": "gold_haadf_npy",
  "shape": [
    4096,
    4096
  ],
  "dtype": "uint16",
  "sampling": [
    0.01860689462227566,
    0.01860689462227566
  ],
  "units": [
    "nm",
    "nm"
  ],
  "voltage_kV": 300,
  "probe_semiangle_mrad": 30,
  "camera_length_mm": 91,
  "fov_nm": [
    76.2,
    76.2
  ],
  "detector": "HAADF (Thermo Velox)",
  "source": "Thermo Velox EMD haadf/gold_haadf.emd (optics from BinaryResult + Optics groups)",
  "purpose": "workshop / Colab demo - npy, no Velox parser needed",
  "mag_MX": null,
  "rotation_deg": 0.0,
  "voltage_kV_source": "confirmed via session HAADF EMD (20260423/0072-*.emd, AccelerationVoltage)",
  "probe_semiangle_source": "confirmed via session HAADF EMD (BeamConvergence 0.02999 rad)",
  "camera_length_source": "confirmed via session HAADF EMD (CameraLength 0.091 m)"
}