From dc13a47dda8683270bc670c01e100e4e0ba3c4c3 Mon Sep 17 00:00:00 2001
From: Adam Nelson <nelsonag@umich.edu>
Date: Tue, 25 Aug 2015 20:39:09 -0400
Subject: [PATCH] Added check to make sure mu was between -1 and 1 to help with
 tallying. This will probably result in changes to the tests.

---
 src/physics.F90 | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/physics.F90 b/src/physics.F90
index 9ca59a9872..043bea6911 100644
--- a/src/physics.F90
+++ b/src/physics.F90
@@ -388,6 +388,13 @@ contains
 
     end if
 
+    ! Check p % mu to ensure it falls within the expected range
+    if (p % mu < -ONE) then
+      p % mu = -ONE
+    else if (p % mu > ONE) then
+      p % mu = ONE
+    end if
+
     ! Set event component
     p % event = EVENT_SCATTER