diff --git a/models/fng_w/openmc_model.py b/models/fng_w/openmc_model.py
index 24ac4cbc..392e55b7 100644
--- a/models/fng_w/openmc_model.py
+++ b/models/fng_w/openmc_model.py
@@ -1363,15 +1363,15 @@ def main():
     region_955 = (+surf_119 & -surf_120 & -surf_84 & +
                   surf_94 & +surf_82 & -surf_92)
     region_990 = (+surf_303 & -surf_101 & +surf_92 & -
-                  surf_93 & +surf_84 & -surf_86)
+                  surf_93 & +surf_84 & -surf_86 & +surf_1)
     region_991 = (+surf_303 & -surf_101 & +surf_92 & -
-                  surf_93 & +surf_87 & -surf_85)
+                  surf_93 & +surf_87 & -surf_85 & +surf_1)
     region_992 = (+surf_303 & -surf_101 & +surf_92 & -
-                  surf_93 & +surf_86 & -surf_87)
+                  surf_93 & +surf_86 & -surf_87 & +surf_1)
     region_993 = (+surf_303 & -surf_101 & +surf_92 & -
-                  surf_93 & +surf_85 & -surf_95)
+                  surf_93 & +surf_85 & -surf_95 & +surf_1)
     region_994 = (+surf_303 & -surf_101 & +surf_92 & -
-                  surf_93 & +surf_94 & -surf_84)
+                  surf_93 & +surf_94 & -surf_84 & +surf_1)
 
     # cells
     cell_1 = openmc.Cell(cell_id=1, region=region_1, fill=mat_3)
diff --git a/models/fng_w/postprocessing.ipynb b/models/fng_w/postprocessing.ipynb
index 4228427e..17c94797 100644
--- a/models/fng_w/postprocessing.ipynb
+++ b/models/fng_w/postprocessing.ipynb
@@ -63,7 +63,7 @@
     "The following reaction rates are included:\n",
     "- $^{93}Nb(n,2n)^{92m}Nb$\n",
     "- $^{58}Ni(n,2n)^{57}Ni$\n",
-    "- $^{90}Zr(n,p)^{89}Zr$\n",
+    "- $^{90}Zr(n,2n)^{89}Zr$\n",
     "- $^{27}Al(n,\\alpha)^{24}Na$\n",
     "- $^{56}Fe(n,p)^{56}Mn$\n",
     "- $^{58}Ni(n,p)^{58}Co$\n",
@@ -294,7 +294,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "openmc_env2",
    "language": "python",
    "name": "python3"
   },