From d3550389c9b4736ba848cb4455145d2d6d009721 Mon Sep 17 00:00:00 2001 From: samuel shaner Date: Mon, 4 Jul 2016 22:07:25 +0000 Subject: [PATCH] updated equation for PromptNuFissionXS --- openmc/mgxs/mgxs.py | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/openmc/mgxs/mgxs.py b/openmc/mgxs/mgxs.py index ca98c41095..acd6365298 100644 --- a/openmc/mgxs/mgxs.py +++ b/openmc/mgxs/mgxs.py @@ -5256,14 +5256,9 @@ class PromptNuFissionXS(MGXS): .. math:: - \langle \nu\sigma_{f,\rightarrow g}^p \phi \rangle &= \int_{r \in V} dr - \int_{4\pi} d\Omega' \int_0^\infty dE' \int_{E_g}^{E_{g-1}} dE \; \chi(E) - \nu\sigma_f (r, E') \psi(r, E', \Omega')\\ - \langle \nu\sigma_f^p \phi \rangle &= \int_{r \in V} dr \int_{4\pi} - d\Omega' \int_0^\infty dE' \int_0^\infty dE \; \chi(E) \nu\sigma_f^p (r, - E') \psi(r, E', \Omega') \\ - \chi_g^p &= \frac{\langle \nu\sigma_{f,\rightarrow g}^p \phi \rangle}{\langle - \nu\sigma_f^p \phi \rangle} + \frac{\int_{r \in V} dr \int_{4\pi} d\Omega \int_{E_g}^{E_{g-1}} dE \; + \nu\sigma_f^p (r, E) \psi (r, E, \Omega)}{\int_{r \in V} dr \int_{4\pi} + d\Omega \int_{E_g}^{E_{g-1}} dE \; \psi (r, E, \Omega)}. Parameters ----------