# Technical Document Extraction ## Image Description The image contains four distinct panels labeled (a), (b), (c), and (d), arranged in a 2x2 grid. Each panel represents a different data visualization type, with shared axis labels and color-coded data series. The legend is located in the top-right corner of the image. --- ### Panel (a): Fourier Amplitude vs. Field (T) - **Type**: Line plot - **Color**: Red - **X-axis**: Field (T) ranging from 0.4 to 1.2 T - **Y-axis**: Fourier amplitude (0.000 to 0.015) - **Key Features**: - Two prominent peaks at approximately **0.7 T** and **0.9 T** - Baseline Fourier amplitude remains near 0.000 for most of the field range - Secondary smaller peaks observed near **0.5 T** and **1.1 T** --- ### Panel (b): Histogram of Field (T) - **Type**: Bar histogram - **Color**: Blue - **X-axis**: Field (T) ranging from 0.4 to 1.2 T - **Y-axis**: Probability density (P(f)) in arbitrary units (0 to 4) - **Key Features**: - Tallest bar centered at **0.8 T** with a height of ~3.5 units - Secondary peaks at **0.6 T** (~2.5 units) and **1.0 T** (~2.0 units) - Uniform bin width across the field range --- ### Panel (c): Histogram of P(f) vs. Field (T) - **Type**: Bar histogram - **Color**: Purple - **X-axis**: Field (T) ranging from 0.4 to 1.2 T - **Y-axis**: Probability density (P(f)) in arbitrary units (0 to 8) - **Key Features**: - Tallest bar at **0.9 T** with a height of ~6 units - Secondary peaks at **0.7 T** (~4 units) and **1.1 T** (~5 units) - Asymmetric distribution with increasing P(f) toward higher fields --- ### Panel (d): Histogram of P(f) vs. Field (T) - **Type**: Bar histogram - **Color**: Green - **X-axis**: Field (T) ranging from 0.4 to 1.2 T - **Y-axis**: Probability density (P(f)) in arbitrary units (0 to 8) - **Key Features**: - Tallest bar at **1.0 T** with a height of ~6 units - Secondary peaks at **0.8 T** (~4.5 units) and **0.6 T** (~3 units) - Gradual increase in P(f) with field strength --- ### Legend - **Location**: Top-right corner of the image - **Color-Coding**: - Red: Panel (a) - Fourier amplitude - Blue: Panel (b) - Field histogram - Purple: Panel (c) - P(f) histogram - Green: Panel (d) - P(f) histogram --- ### Spatial Grounding - **Legend Position**: [x=0.85, y=0.95] (normalized coordinates) - **Data Point Verification**: - Panel (a) red line matches legend - Panel (b) blue bars match legend - Panel (c) purple bars match legend - Panel (d) green bars match legend --- ### Trend Verification 1. **Panel (a)**: Red line slopes upward to two peaks at 0.7T and 0.9T, then declines. 2. **Panel (b)**: Blue histogram peaks at 0.8T, with smaller peaks at 0.6T and 1.0T. 3. **Panel (c)**: Purple histogram shows increasing P(f) toward 0.9T, with a secondary peak at 1.1T. 4. **Panel (d)**: Green histogram peaks at 1.0T, with secondary peaks at 0.8T and 0.6T. --- ### Notes - No textual data beyond axis labels and units is present in the image. - All axis labels and units are explicitly stated in the image. - No data tables or embedded text blocks are visible.