From ba07380fabe4fb832aa9251ba584560c0ee9bf4c Mon Sep 17 00:00:00 2001
From: Sterling Harper <smharper@mit.edu>
Date: Thu, 3 Nov 2016 16:05:37 -0400
Subject: [PATCH] Specify the default source energy distribution

---
 docs/source/usersguide/input.rst | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/docs/source/usersguide/input.rst b/docs/source/usersguide/input.rst
index 74de4caa41..203b56dccc 100644
--- a/docs/source/usersguide/input.rst
+++ b/docs/source/usersguide/input.rst
@@ -528,6 +528,8 @@ attributes/sub-elements:
     sub-elements/attributes are those of a univariate probability distribution
     (see the description in :ref:`univariate`).
 
+    *Default*: Watt spectrum with :math:`a` = 0.988 MeV and :math:`b` = 2.249 MeV
+
   :write_initial:
     An element specifying whether to write out the initial source bank used at
     the beginning of the first batch. The output file is named