{
 "manifest": {
  "id": "p2_22_one_shaking",
  "title": "One shaking: a vibrator beside the bench, with the chamber and without it",
  "date": "2026-09-29",
  "started_utc": "2026-09-29T15:44:44+00:00",
  "runtime_s": 1379.6,
  "commit": "aeffc33",
  "params": {
   "site": "bench-void",
   "frequency_hz": 10.691485,
   "mode": 10,
   "source_m": [
    -30.0,
    0.0,
    0.0
   ],
   "extent_m": [
    [
     -150.0,
     150.0
    ],
    [
     -150.0,
     150.0
    ],
    [
     -100.0,
     3.0
    ]
   ],
   "spacing_m": 1.0,
   "pml_cells": 20,
   "cycles": [
    3,
    12
   ],
   "cases": {
    "none": null,
    "bench": {
     "centre": [
      0,
      0,
      -15
     ],
     "size": [
      6,
      6,
      6
     ]
    },
    "favourable": {
     "centre": [
      0,
      0,
      -10
     ],
     "size": [
      10,
      10,
      10
     ]
    }
   },
   "recorded_half_m": 60.0
  },
  "environment": {
   "python": "3.11.3",
   "numpy": "2.4.6",
   "numba": "0.67.0",
   "threads": 16,
   "cpus": 16
  }
 },
 "checks": {
  "none": {
   "steady_change_max": 0.003627,
   "steady_change_median": 0.003633,
   "up_at_axis_m_s_per_n": 7.565e-12,
   "runtime_s": 445.3
  },
  "bench": {
   "steady_change_max": 0.003627,
   "steady_change_median": 0.003633,
   "up_at_axis_m_s_per_n": 7.584e-12,
   "runtime_s": 500.9
  },
  "favourable": {
   "steady_change_max": 0.003627,
   "steady_change_median": 0.003633,
   "up_at_axis_m_s_per_n": 7.647e-12,
   "runtime_s": 433.3
  }
 },
 "imprint": {
  "bench": {
   "max_m_s_per_n": 1.339e-13,
   "max_relative": 0.013704,
   "relative_at_axis": 0.004684,
   "half_max_radius_m": 18.681542,
   "up_max_m_s_per_n": 1.339e-13
  },
  "favourable": {
   "max_m_s_per_n": 6.222e-13,
   "max_relative": 0.064958,
   "relative_at_axis": 0.014386,
   "half_max_radius_m": 14.866069,
   "up_max_m_s_per_n": 6.222e-13
  }
 },
 "frequency_hz": 10.691485,
 "finding": "A vertical vibrator 30 m west of the chamber's axis, at 10.69 Hz, moves the ground over the axis by 7.6 x 10^-12 m/s per newton of force. The bench's chamber (6 m, 15 m down) changes the surface motion by at most 1.4% of it (1.3 x 10^-13 m/s per newton), within 19 m of its axis at half that; the favourable chamber (10 m, roof 5 m down) by 6.5% (6.2 x 10^-13 m/s per newton). The motion is steady: successive windows differ by at most 0.4% of its largest value."
}