edit outdated comments for mMR normalisation file

Fixes #245

Author: KrisThielemans

notebooks/PET/reconstruct_measured_data.ipynb

@@ -108,10 +108,10 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# convert the Siemens Normalisation into STIR format, some keys slightly differ\n",
-    "# $data_path/20170809_NEMA[_MUMAP]_UCL.n.hdr are the extracted headers from the scanner\n",
-    "# norm.n.hdr and umap.v.hdr are the output converted files\n",
-    "#!convertSiemensInterfileToSTIR.sh $data_path/20170809_NEMA_UCL.n.hdr norm.n.hdr\n",
+    "# convert the Siemens attenuation image into STIR format, some keys slightly differ\n",
+    "# $data_path/20170809_NEMA_MUMAP_UCL.v.hdr is the extracted header from the scanner\n",
+    "# umap.v.hdr is the output converted file\n",
+    "# Also copy the normalisation header for modification below (using a shorter name).\n",
     "!cp $data_path/20170809_NEMA_UCL.n.hdr norm.n.hdr\n",
     "!convertSiemensInterfileToSTIR.sh $data_path/20170809_NEMA_MUMAP_UCL.v.hdr umap.v.hdr\n",
     "\n",