From d1e427ed9aa3c256e57b635bf47160754bdf410a Mon Sep 17 00:00:00 2001
From: Paul Romano <paul.k.romano@gmail.com>
Date: Mon, 12 Nov 2018 07:52:07 -0600
Subject: [PATCH] Use MT=101 for "absorption" in ESZ block for
 IncidentNeutron.from_ace

---
 openmc/data/neutron.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/openmc/data/neutron.py b/openmc/data/neutron.py
index f1a2acc53d..589318aab8 100644
--- a/openmc/data/neutron.py
+++ b/openmc/data/neutron.py
@@ -641,10 +641,10 @@ class IncidentNeutron(EqualityMixin):
         data.reactions[1] = total
 
         if np.count_nonzero(absorption_xs) > 0:
-            absorption = Reaction(27)
+            absorption = Reaction(101)
             absorption.xs[strT] = Tabulated1D(energy, absorption_xs)
             absorption.redundant = True
-            data.reactions[27] = absorption
+            data.reactions[101] = absorption
 
         # Read each reaction
         n_reaction = ace.nxs[4] + 1