From 1f66f140a4be50b4b8092f9f60d36ca87d16a2c7 Mon Sep 17 00:00:00 2001 From: Paul Romano Date: Thu, 26 Jul 2012 13:11:12 -0400 Subject: [PATCH] Added clarification regarding sampling fission reactions. --- docs/source/methods/physics.rst | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/docs/source/methods/physics.rst b/docs/source/methods/physics.rst index 6df3909658..50707fdf1b 100644 --- a/docs/source/methods/physics.rst +++ b/docs/source/methods/physics.rst @@ -797,7 +797,8 @@ second-chance fission, etc. An ACE table either lists the partial fission reactions with secondary energy distributions for each one, or a total fission reaction with a single secondary energy distribution. -When a fission reaction is sampled in OpenMC, the following algorithm is used to +When a fission reaction is sampled in OpenMC (either total fission or, if data +exists, first- or second-chance fission), the following algorithm is used to create and store fission sites for the following generation. First, the average number of prompt and delayed neutrons must be determined to decide whether the secondary neutrons will be prompt or delayed. This is important because delayed