24653638292

Committed 20 Apr 2026 07:18AM UTC coverage: 81.355% (-0.7%) from 82.058%

Build # 24653638292

Build Type

Pull #2693

github

Committed by

web-flow

Commit Message

Merge 16d110298 into 36e70d8ef

Pull Request Pull Request #2693: Add reactivity control to coupled transport-depletion analyses

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83.33

/src/reaction_product.cpp

#include "openmc/reaction_product.h"

#include <cassert>
#include <string> // for string

#include <fmt/core.h>

#include "openmc/endf.h"
#include "openmc/error.h"
#include "openmc/hdf5_interface.h"
#include "openmc/memory.h"
#include "openmc/particle.h"
#include "openmc/random_lcg.h"
#include "openmc/secondary_correlated.h"
#include "openmc/secondary_kalbach.h"
#include "openmc/secondary_nbody.h"
#include "openmc/secondary_uncorrelated.h"

namespace openmc {

//==============================================================================
// ReactionProduct implementation
//==============================================================================

ReactionProduct::ReactionProduct(hid_t group)
{
  // Read particle type
  std::string temp;
  read_attribute(group, "particle", temp);
  particle_ = ParticleType {temp};

  // Read emission mode and decay rate
  read_attribute(group, "emission_mode", temp);
  if (temp == "prompt") {
    emission_mode_ = EmissionMode::prompt;
  } else if (temp == "delayed") {
    emission_mode_ = EmissionMode::delayed;
  } else if (temp == "total") {
    emission_mode_ = EmissionMode::total;
  }

  // Read decay rate for delayed emission
  if (emission_mode_ == EmissionMode::delayed) {
    if (attribute_exists(group, "decay_rate")) {
      read_attribute(group, "decay_rate", decay_rate_);
    } else if (particle_.is_neutron()) {
      warning(fmt::format("Decay rate doesn't exist for delayed neutron "
                          "emission ({}).",
        object_name(group)));
    }
  }

  // Read secondary particle yield
  yield_ = read_function(group, "yield");

  int n;
  read_attribute(group, "n_distribution", n);

  for (int i = 0; i < n; ++i) {
    std::string s {"distribution_"};
    s.append(std::to_string(i));
    hid_t dgroup = open_group(group, s.c_str());

    // Read applicability
    if (n > 1) {
      hid_t app = open_dataset(dgroup, "applicability");
      applicability_.emplace_back(app);
      close_dataset(app);
    }

    // Determine distribution type and read data
    read_attribute(dgroup, "type", temp);
    if (temp == "uncorrelated") {
      distribution_.push_back(make_unique<UncorrelatedAngleEnergy>(dgroup));
    } else if (temp == "correlated") {
      distribution_.push_back(make_unique<CorrelatedAngleEnergy>(dgroup));
    } else if (temp == "nbody") {
      distribution_.push_back(make_unique<NBodyPhaseSpace>(dgroup));
    } else if (temp == "kalbach-mann") {
      distribution_.push_back(make_unique<KalbachMann>(dgroup));
    }

    close_group(dgroup);
  }
}

ReactionProduct::ReactionProduct(const ChainNuclide::Product& product)
{
  particle_ = ParticleType::photon();
  emission_mode_ = EmissionMode::delayed;

  // Get chain nuclide object for radionuclide
  parent_nuclide_ = data::chain_nuclide_map.at(product.name);
  const auto& chain_nuc = data::chain_nuclides[parent_nuclide_].get();

  // Determine decay constant in [s^-1]
  decay_rate_ = chain_nuc->decay_constant();

  // Determine number of photons per decay and set yield
  double photon_per_sec = chain_nuc->photon_energy()->integral();
  double photon_per_decay = photon_per_sec / decay_rate_;
  vector<double> coef = {product.branching_ratio * photon_per_decay};
  yield_ = make_unique<Polynomial>(coef);

  // Set decay photon angle-energy distribution
  distribution_.push_back(
    make_unique<DecayPhotonAngleEnergy>(chain_nuc->photon_energy()));
}

AngleEnergy& ReactionProduct::sample_dist(double E_in, uint64_t* seed) const
{
  assert(!distribution_.empty());

  auto n = applicability_.size();
  if (n > 1) {
    double prob = 0.0;
    double c = prn(seed);
    for (int i = 0; i < n; ++i) {
      // Determine probability that i-th energy distribution is sampled
      prob += applicability_[i](E_in);

      // If i-th distribution is sampled, sample energy from the distribution
      if (c <= prob)
        return *distribution_[i];
    }
  }

  return *distribution_.back();
}

void ReactionProduct::sample(
  double E_in, double& E_out, double& mu, uint64_t* seed) const
{
  sample_dist(E_in, seed).sample(E_in, E_out, mu, seed);
}

double ReactionProduct::sample_energy_and_pdf(
  double E_in, double mu, double& E_out, uint64_t* seed) const
{
  return sample_dist(E_in, seed).sample_energy_and_pdf(E_in, mu, E_out, seed);
}

} // namespace openmc

1	#include "openmc/reaction_product.h"
2
3	#include <cassert>
4	#include <string> // for string
5
6	#include <fmt/core.h>
7
8	#include "openmc/endf.h"
9	#include "openmc/error.h"
10	#include "openmc/hdf5_interface.h"
11	#include "openmc/memory.h"
12	#include "openmc/particle.h"
13	#include "openmc/random_lcg.h"
14	#include "openmc/secondary_correlated.h"
15	#include "openmc/secondary_kalbach.h"
16	#include "openmc/secondary_nbody.h"
17	#include "openmc/secondary_uncorrelated.h"
18
19	namespace openmc {
20
21	//==============================================================================
22	// ReactionProduct implementation
23	//==============================================================================
24
25	ReactionProduct::ReactionProduct(hid_t group)	3,461,544✔
26	{
27	// Read particle type
28	std::string temp;	3,461,544✔
29	read_attribute(group, "particle", temp);	3,461,544✔
30	particle_ = ParticleType {temp};	3,461,544✔
31
32	// Read emission mode and decay rate
33	read_attribute(group, "emission_mode", temp);	3,461,544✔
34	if (temp == "prompt") {	3,461,544✔
35	emission_mode_ = EmissionMode::prompt;	3,376,866✔
36	} else if (temp == "delayed") {	84,678!
37	emission_mode_ = EmissionMode::delayed;	84,678✔
38	} else if (temp == "total") {	×
UNCOV 39	emission_mode_ = EmissionMode::total;	×
40	}
41
42	// Read decay rate for delayed emission
43	if (emission_mode_ == EmissionMode::delayed) {	3,461,544✔
44	if (attribute_exists(group, "decay_rate")) {	84,678!
45	read_attribute(group, "decay_rate", decay_rate_);	84,678✔
46	} else if (particle_.is_neutron()) {	×
UNCOV 47	warning(fmt::format("Decay rate doesn't exist for delayed neutron "	×
48	"emission ({}).",
UNCOV 49	object_name(group)));	×
50	}
51	}
52
53	// Read secondary particle yield
54	yield_ = read_function(group, "yield");	3,461,544✔
55
56	int n;	3,461,544✔
57	read_attribute(group, "n_distribution", n);	3,461,544✔
58
59	for (int i = 0; i < n; ++i) {	6,924,043✔
60	std::string s {"distribution_"};	3,462,499✔
61	s.append(std::to_string(i));	6,924,998✔
62	hid_t dgroup = open_group(group, s.c_str());	3,462,499✔
63
64	// Read applicability
65	if (n > 1) {	3,462,499✔
66	hid_t app = open_dataset(dgroup, "applicability");	1,820✔
67	applicability_.emplace_back(app);	1,820✔
68	close_dataset(app);	1,820✔
69	}
70
71	// Determine distribution type and read data
72	read_attribute(dgroup, "type", temp);	3,462,499✔
73	if (temp == "uncorrelated") {	3,462,499✔
74	distribution_.push_back(make_unique<UncorrelatedAngleEnergy>(dgroup));	3,340,620✔
75	} else if (temp == "correlated") {	121,879✔
76	distribution_.push_back(make_unique<CorrelatedAngleEnergy>(dgroup));	50,676✔
77	} else if (temp == "nbody") {	71,203✔
78	distribution_.push_back(make_unique<NBodyPhaseSpace>(dgroup));	765✔
79	} else if (temp == "kalbach-mann") {	70,438!
80	distribution_.push_back(make_unique<KalbachMann>(dgroup));	70,438✔
81	}
82
83	close_group(dgroup);	3,462,499✔
84	}	3,462,499✔
85	}	3,461,544✔
86
87	ReactionProduct::ReactionProduct(const ChainNuclide::Product& product)	132✔
88	{
89	particle_ = ParticleType::photon();	132✔
90	emission_mode_ = EmissionMode::delayed;	132✔
91
92	// Get chain nuclide object for radionuclide
93	parent_nuclide_ = data::chain_nuclide_map.at(product.name);	132✔
94	const auto& chain_nuc = data::chain_nuclides[parent_nuclide_].get();	132✔
95
96	// Determine decay constant in [s^-1]
97	decay_rate_ = chain_nuc->decay_constant();	132✔
98
99	// Determine number of photons per decay and set yield
100	double photon_per_sec = chain_nuc->photon_energy()->integral();	132✔
101	double photon_per_decay = photon_per_sec / decay_rate_;	132✔
102	vector<double> coef = {product.branching_ratio * photon_per_decay};	132✔
103	yield_ = make_unique<Polynomial>(coef);	132✔
104
105	// Set decay photon angle-energy distribution
106	distribution_.push_back(	132✔
107	make_unique<DecayPhotonAngleEnergy>(chain_nuc->photon_energy()));	264✔
108	}	132✔
109
110	AngleEnergy& ReactionProduct::sample_dist(double E_in, uint64_t* seed) const	64,221,140✔
111	{
112	assert(!distribution_.empty());	64,221,140!
113
114	auto n = applicability_.size();	64,221,140✔
115	if (n > 1) {	64,221,140✔
116	double prob = 0.0;	1,221✔
117	double c = prn(seed);	1,221✔
118	for (int i = 0; i < n; ++i) {	2,090!
119	// Determine probability that i-th energy distribution is sampled
120	prob += applicability_[i](E_in);	2,090✔
121
122	// If i-th distribution is sampled, sample energy from the distribution
123	if (c <= prob)	2,090✔
124	return *distribution_[i];	1,221✔
125	}
126	}
127
128	return *distribution_.back();	64,219,919✔
129	}
130
131	void ReactionProduct::sample(	64,221,140✔
132	double E_in, double& E_out, double& mu, uint64_t* seed) const
133	{
134	sample_dist(E_in, seed).sample(E_in, E_out, mu, seed);	64,221,140✔
135	}	64,221,140✔
136
UNCOV 137	double ReactionProduct::sample_energy_and_pdf(	×
138	double E_in, double mu, double& E_out, uint64_t* seed) const
139	{
UNCOV 140	return sample_dist(E_in, seed).sample_energy_and_pdf(E_in, mu, E_out, seed);	×
141	}
142
143	} // namespace openmc

openmc-dev / openmc / 24653638292

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