Allow source particles with energy below cutoff (will just deposit en…

…ergy)
openmc-dev · Dec 5, 2022 · 185920a · 185920a
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commit 185920a
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diff --git a/docs/source/usersguide/tallies.rst b/docs/source/usersguide/tallies.rst
@@ -269,9 +269,8 @@ The following tables show all valid scores:
     |heating               |Total nuclear heating in units of eV per source    |
     |                      |particle. For neutrons, this corresponds to MT=301 |
     |                      |produced by NJOY's HEATR module while for photons, |
-    |                      |this is tallied from either direct photon energy   |
-    |                      |deposition (analog estimator) or pre-generated     |
-    |                      |photon heating number. See :ref:`methods_heating`  |
+    |                      |this is tallied from direct photon energy          |
+    |                      |deposition. See :ref:`methods_heating`.            |
     +----------------------+---------------------------------------------------+
     |heating-local         |Total nuclear heating in units of eV per source    |
     |                      |particle assuming energy from secondary photons is |

diff --git a/src/source.cpp b/src/source.cpp
@@ -256,18 +256,15 @@ SourceSite IndependentSource::sample(uint64_t* seed) const
     if (xt::any(energies > data::energy_max[p])) {
       fatal_error("Source energy above range of energies of at least "
                   "one cross section table");
-    } else if (xt::any(energies < data::energy_min[p])) {
-      fatal_error("Source energy below range of energies of at least "
-                  "one cross section table");
     }
   }
 
   while (true) {
     // Sample energy spectrum
     site.E = energy_->sample(seed);
 
-    // Resample if energy falls outside minimum or maximum particle energy
-    if (site.E < data::energy_max[p] && site.E > data::energy_min[p])
+    // Resample if energy falls above maximum particle energy
+    if (site.E < data::energy_max[p])
       break;
 
     n_reject++;