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{
  "sample_id": 240,
  "geometry_type": "sphere",
  "geometry_parameters": {
    "type": "sphere",
    "radius": 0.396569111921518,
    "segment_angle": 62.2873433792773
  },
  "rq_target": 0.004393438711109361,
  "rq_actual": 0.004393438711109361,
  "ra_actual": 0.003514356685169212,
  "severity": "high_corrosion",
  "is_anisotropic": false,
  "psd_method": "exponential",
  "manufacturing_process": "end_of_life_corrosion",
  "method": "hybrid",
  "grid_resolution": [
    260,
    199
  ],
  "physical_dimensions": [
    0.17256703805064003,
    0.03601445370006898
  ],
  "curvature_statistics": {
    "mean_slope": 0.0008187972835589357,
    "max_slope": 0.0014719802704823148,
    "height_range": 0.21214955691116139,
    "mean_height": 0.07375002096129067,
    "std_height": 0.06442585611414117
  },
  "generation_timestamp": "2025-11-08T02:51:09.523250",
  "correlation_length": 0.07671932347151868,
  "hybrid_parameters": {
    "w_psd": 0.1,
    "w_perlin": 0.15,
    "w_fractal": 0.75,
    "perlin_octaves": 6,
    "perlin_persistence": 0.8289722194830423,
    "perlin_lacunarity": 2.5,
    "fractal_hurst": 0.45036118001801234,
    "fractal_modes": 87
  }
}