crp/OpenMC
1
0
Fork 0
mirror of https://github.com/openmc-dev/openmc.git synced 2026-07-27 13:45:36 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Simulation of decay photons through the D1S method (#3235)

Browse source 
D1S FTW!
This commit is contained in:
Paul Romano 2025-02-21 11:47:38 -06:00 • committed by GitHub
parent 2b788ea6e0
commit d643ad0c41
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
36 changed files with 1298 additions and 101 deletions
Download patch file Download diff file Expand all files Collapse all files

34
src/reaction.cpp
View file

@ -1,17 +1,20 @@
#include "openmc/reaction.h"
#include <algorithm> // for remove_if
#include <string>
#include <unordered_map>
#include <utility> // for move
#include <fmt/core.h>
#include "openmc/chain.h"
#include "openmc/constants.h"
#include "openmc/endf.h"
#include "openmc/hdf5_interface.h"
#include "openmc/random_lcg.h"
#include "openmc/search.h"
#include "openmc/secondary_uncorrelated.h"
#include "openmc/settings.h"
namespace openmc {
@ -19,7 +22,8 @@ namespace openmc {
// Reaction implementation
//==============================================================================
Reaction::Reaction(hid_t group, const vector<int>& temperatures)
Reaction::Reaction(
hid_t group, const vector<int>& temperatures, std::string name)
{
read_attribute(group, "Q_value", q_value_);
read_attribute(group, "mt", mt_);
@ -63,6 +67,34 @@ Reaction::Reaction(hid_t group, const vector<int>& temperatures)
close_group(pgroup);
}
}
if (settings::use_decay_photons) {
// Remove photon products for D1S method
products_.erase(
std::remove_if(products_.begin(), products_.end(),
[](const auto& p) { return p.particle_ == ParticleType::photon; }),
products_.end());
// Determine product for D1S method
auto nuclide_it = data::chain_nuclide_map.find(name);
if (nuclide_it != data::chain_nuclide_map.end()) {
const auto& chain_nuc = data::chain_nuclides[nuclide_it->second];
const auto& rx_products = chain_nuc->reaction_products();
auto product_it = rx_products.find(mt_);
if (product_it != rx_products.end()) {
auto decay_products = product_it->second;
for (const auto& decay_product : decay_products) {
auto product_it = data::chain_nuclide_map.find(decay_product.name);
if (product_it != data::chain_nuclide_map.end()) {
const auto& product_nuc = data::chain_nuclides[product_it->second];
if (product_nuc->photon_energy()) {
products_.emplace_back(decay_product);
}
}
}
}
}
}
}
double Reaction::xs(int64_t i_temp, int64_t i_grid, double interp_factor) const