Merge pull request pyne#1121 from zxkjack123/speed_up_r2s_step2_1

Speed up r2s step2 1
cnerg · Apr 18, 2019 · b1931ce · b1931ce
2 parents 660b1bd + 32cdb3a
commit b1931ce
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diff --git a/news/speed_up_r2s_step2_1.rst b/news/speed_up_r2s_step2_1.rst
@@ -0,0 +1,13 @@
+**Added:** None
+
+**Changed:**
+
+* Simplify the method to get the list of decay/cooling times
+
+**Deprecated:** None
+
+**Removed:** None
+
+**Fixed:** None
+
+**Security:** None
diff --git a/pyne/alara.py b/pyne/alara.py
@@ -234,8 +234,10 @@ def photon_source_hdf5_to_mesh(mesh, filename, tags, sub_voxel=False,
     phtn_src_dc = []
     with tb.open_file(filename) as h5f:
         for row in h5f.root.data:
-            phtn_src_dc.append(row[2])
-    phtn_src_dc = list(set(phtn_src_dc))
+            if row[2] not in phtn_src_dc:
+                phtn_src_dc.append(row[2])
+            else:
+                break
 
     # iterate through each requested nuclide/dectay time
     for cond in tags.keys():