20929527028

Committed 12 Jan 2026 05:52PM UTC coverage: 81.854% (-0.2%) from 82.058%

Build # 20929527028

Build Type

Pull #3550

github

Committed by

web-flow

Commit Message

Merge 43a6fbb93 into 0486e433d

Pull Request Pull Request #3550: [Point Detector] Add distribution get_pdf functionality

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17213 of 23991 branches covered (71.75%)

Branch coverage included in aggregate %.

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1 existing line in 1 file now uncovered.

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83.7

/src/reaction_product.cpp

#include "openmc/reaction_product.h"

#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_ = str_to_particle_type(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_ == ParticleType::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
{
  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];
        break;
      }
    }
  } else {
    // If only one distribution is present, go ahead and sample it
    return *distribution_[0];
  }
}

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 <string> // for string
4
5	#include <fmt/core.h>
6
7	#include "openmc/endf.h"
8	#include "openmc/error.h"
9	#include "openmc/hdf5_interface.h"
10	#include "openmc/memory.h"
11	#include "openmc/particle.h"
12	#include "openmc/random_lcg.h"
13	#include "openmc/secondary_correlated.h"
14	#include "openmc/secondary_kalbach.h"
15	#include "openmc/secondary_nbody.h"
16	#include "openmc/secondary_uncorrelated.h"
17
18	namespace openmc {
19
20	//==============================================================================
21	// ReactionProduct implementation
22	//==============================================================================
23
24	ReactionProduct::ReactionProduct(hid_t group)	3,261,444✔
25	{
26	// Read particle type
27	std::string temp;	3,261,444✔
28	read_attribute(group, "particle", temp);	3,261,444✔
29	particle_ = str_to_particle_type(temp);	3,261,444✔
30
31	// Read emission mode and decay rate
32	read_attribute(group, "emission_mode", temp);	3,261,444✔
33	if (temp == "prompt") {	3,261,444✔
34	emission_mode_ = EmissionMode::prompt;	3,181,650✔
35	} else if (temp == "delayed") {	79,794!
36	emission_mode_ = EmissionMode::delayed;	79,794✔
37	} else if (temp == "total") {	×
38	emission_mode_ = EmissionMode::total;	×
39	}
40
41	// Read decay rate for delayed emission
42	if (emission_mode_ == EmissionMode::delayed) {	3,261,444✔
43	if (attribute_exists(group, "decay_rate")) {	79,794!
44	read_attribute(group, "decay_rate", decay_rate_);	79,794✔
45	} else if (particle_ == ParticleType::neutron) {	×
46	warning(fmt::format("Decay rate doesn't exist for delayed neutron "	×
47	"emission ({}).",
48	object_name(group)));	×
49	}
50	}
51
52	// Read secondary particle yield
53	yield_ = read_function(group, "yield");	3,261,444✔
54
55	int n;
56	read_attribute(group, "n_distribution", n);	3,261,444✔
57
58	for (int i = 0; i < n; ++i) {	6,523,829✔
59	std::string s {"distribution_"};	3,262,385✔
60	s.append(std::to_string(i));	3,262,385✔
61	hid_t dgroup = open_group(group, s.c_str());	3,262,385✔
62
63	// Read applicability
64	if (n > 1) {	3,262,385✔
65	hid_t app = open_dataset(dgroup, "applicability");	1,786✔
66	applicability_.emplace_back(app);	1,786✔
67	close_dataset(app);	1,786✔
68	}
69
70	// Determine distribution type and read data
71	read_attribute(dgroup, "type", temp);	3,262,385✔
72	if (temp == "uncorrelated") {	3,262,385✔
73	distribution_.push_back(make_unique<UncorrelatedAngleEnergy>(dgroup));	3,147,487✔
74	} else if (temp == "correlated") {	114,898✔
75	distribution_.push_back(make_unique<CorrelatedAngleEnergy>(dgroup));	46,604✔
76	} else if (temp == "nbody") {	68,294✔
77	distribution_.push_back(make_unique<NBodyPhaseSpace>(dgroup));	752✔
78	} else if (temp == "kalbach-mann") {	67,542!
79	distribution_.push_back(make_unique<KalbachMann>(dgroup));	67,542✔
80	}
81
82	close_group(dgroup);	3,262,385✔
83	}	3,262,385✔
84	}	3,261,444✔
85
86	ReactionProduct::ReactionProduct(const ChainNuclide::Product& product)	132✔
87	{
88	particle_ = ParticleType::photon;	132✔
89	emission_mode_ = EmissionMode::delayed;	132✔
90
91	// Get chain nuclide object for radionuclide
92	parent_nuclide_ = data::chain_nuclide_map.at(product.name);	132✔
93	const auto& chain_nuc = data::chain_nuclides[parent_nuclide_].get();	132✔
94
95	// Determine decay constant in [s^-1]
96	decay_rate_ = chain_nuc->decay_constant();	132✔
97
98	// Determine number of photons per decay and set yield
99	double photon_per_sec = chain_nuc->photon_energy()->integral();	132✔
100	double photon_per_decay = photon_per_sec / decay_rate_;	132✔
101	vector<double> coef = {product.branching_ratio * photon_per_decay};	132✔
102	yield_ = make_unique<Polynomial>(coef);	132✔
103
104	// Set decay photon angle-energy distribution
105	distribution_.push_back(	132✔
106	make_unique<DecayPhotonAngleEnergy>(chain_nuc->photon_energy()));	264✔
107	}	132✔
108
109	AngleEnergy& ReactionProduct::sample_dist(double E_in, uint64_t* seed) const	48,191,833✔
110	{
111	auto n = applicability_.size();	48,191,833✔
112	if (n > 1) {	48,191,833✔
113	double prob = 0.0;	1,078✔
114	double c = prn(seed);	1,078✔
115	for (int i = 0; i < n; ++i) {	1,837!
116	// Determine probability that i-th energy distribution is sampled
117	prob += applicability_[i](E_in);	1,837✔
118
119	// If i-th distribution is sampled, sample energy from the distribution
120	if (c <= prob) {	1,837✔
121	return *distribution_[i];	1,078✔
122	break;
123	}
124	}
125	} else {
126	// If only one distribution is present, go ahead and sample it
127	return *distribution_[0];	48,190,755✔
128	}
UNCOV 129	}	×
130
131	void ReactionProduct::sample(	48,191,833✔
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);	48,191,833✔
135	}	48,191,833✔
136
NEW 137	double ReactionProduct::sample_energy_and_pdf(	×
138	double E_in, double mu, double& E_out, uint64_t* seed) const
139	{
NEW 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 / 20929527028

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