Update README.md

README.md

@@ -5,7 +5,105 @@ license_link: LICENSE
 tags:
 - medical
 - chemistry
+- saxs
+- small-angle-x-ray-scattering
+- nanoparticles
+- synthetic-data
+- physics-simulation
+- materials-science
+- scattering
+- machine-learning
+- deep-learning
 pretty_name: SAXS Scattering Curves Dataset
 size_categories:
 - 100K<n<1M
----
+task_categories:
+- regression
+- classification
+---
+
+
+# 📡 SAXS Synthetic Scattering Curves Dataset
+
+> **Thousands of physically accurate Small Angle X-ray Scattering (SAXS) curves, generated from rigorous physical models.**
+
+---
+
+## 🔬 What is this dataset?
+
+This dataset provides synthetic **SAXS intensity curves I(q)** generated using validated physical scattering models (via [SASmodels](https://github.com/SasView/sasmodels)), covering a wide range of nanoparticle shapes, materials, sizes, and concentrations.
+
+Each curve is **fully labelled** with its physical parameters, making it immediately usable for:
+- Training ML models to **predict nanoparticle parameters from experimental curves**
+- **Benchmarking** fitting algorithms
+- **Data augmentation** for experimental datasets
+- Developing **automated analysis pipelines**
+
+---
+
+## 🚀 Quick Start
+
+```python
+import h5py
+import numpy as np
+import matplotlib.pyplot as plt
+
+with h5py.File("saxs_ag_sphere.h5", "r") as f:
+    q           = f.attrs["q"]                # shape (1000,)
+    intensities = f["intensities"][:, :]  # shape (N, 1000)
+    radii       = f["radius"][:]          # shape (N,) in nm
+    conc        = f["concentration"][:]   # shape (N,) in part.cm⁻³
+
+# Plot a random curve
+idx = np.random.randint(len(radii))
+plt.loglog(q, intensities[idx])
+plt.xlabel("q (Å⁻¹)")
+plt.ylabel("I(q) (cm⁻¹ × 10¹²)")
+plt.title(f"r = {radii[idx]:.1f} nm, c = {conc[idx]:.2e} cm⁻³")
+plt.show()
+```
+
+
+## 💼 Versions & Pricing
+
+This page hosts a **free sample** (~100 curves).  
+Full commercial versions are available on [Gumroad →](https://gumroad.com)
+
+| Tier | Curves | Shape | Material | Price |
+|---|---|---|---|---|
+| **Sample** (this page) | 100 | sphere | ag | Free |
+| **Custom** | Unlimited | Custom | Custom | On request |
+
+---
+
+## 📄 License
+
+This dataset is released under a **Commercial Restricted License**.  
+- ✅ Academic and research use: **free**
+- ✅ Internal ML training: **free for non-commercial entities**
+- ❌ Commercial use (products, services, APIs): **requires a paid license**
+
+See [LICENSE](./LICENSE) for full terms.
+
+---
+
+## 📬 Contact & Custom Orders
+
+Need a specific material, shape, q-range, or instrument noise model?  
+→ **[Contact via Gumroad](https://venon28.gumroad.com/)** or open a Discussion on this page.
+
+---
+
+## 📖 Citation
+
+If you use this dataset in academic work, please cite:
+
+```bibtex
+@dataset{saxs_2026,
+  author    = {Thevenon, Esteban},
+  title     = {SAXS Synthetic Scattering Curves Dataset},
+  year      = {2026},
+  publisher = {Hugging Face},
+  url       = {https://huggingface.co/datasets/Venon28/SAXS}
+}
+```