Add pointer to the raw source data archive (RyoMurakami/OpenH-RF-eSAF-raw)

README.md

@@ -203,6 +203,15 @@ is stored in every `.hdf5` (see Dataset Format above).
   back-projection focus for eSAF is depth-dependent on real data (see
   `../docs/eSAF_focus_depth_study_JP.md`).
 
+## Raw Source Data
+The raw, pre-conversion acquisition/simulation outputs that were processed into the
+zea `.hdf5` files above are archived (same CC BY 4.0 license) at
+<https://huggingface.co/datasets/RyoMurakami/OpenH-RF-eSAF-raw>: the raw Verasonics
+per-line channel-RF captures (`RFdata_line*.mat` + encoder logs) for the 5 measured
+acquisitions, and the per-case MATLAB intermediates (raw RF, in-plane DAS, eSAF
+output) for the 190 simulated cases. See that repository's README for how each
+maps to `data/*.hdf5` here.
+
 ## Ethical Considerations
 None. The data is either fully synthetic (Field II) or measured on an **inanimate
 phantom** — no human or animal subjects, no PHI, no consent/IRB constraints.