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/*
MassMap.h
A represnetation of the AMDC mass table. We provide capability to retrieve the mass of an isotope
as well as the isotopic symbol. This sort of code is pretty ubiquitous in flexible nuclear physics
analysis.
GWM -- Feb 2022
*/
#include "MassMap.h"
/*
Read in AMDC mass file, preformated to remove excess info. Here assumes that by default
the file is in a local directory Resources. Navigator build process handles this.
*/
MassMap::MassMap()
{
NAV_PROFILE_FUNCTION();
std::ifstream massfile("Assets/amdc2016_mass.txt");
if (massfile.is_open())
{
std::string junk, A, element;
int Z;
double atomicMassBig, atomicMassSmall, isotopicMass;
getline(massfile, junk);
getline(massfile, junk);
while (massfile >> junk)
{
massfile >> Z >> A >> element >> atomicMassBig >> atomicMassSmall;
isotopicMass = (atomicMassBig + atomicMassSmall * 1e-6 - Z * electron_mass) * u_to_mev;
std::string key = "(" + std::to_string(Z) + "," + A + ")";
massTable[key] = isotopicMass;
elementTable[Z] = element;
}
}
else
{
NAV_ERROR("Unable to load mass file! Make sure that the Resources folder exists!");
}
}
MassMap::~MassMap() {}
//Returns nuclear mass in MeV
double MassMap::FindMass(int Z, int A)
{
NAV_PROFILE_FUNCTION();
std::string key = "(" + std::to_string(Z) + "," + std::to_string(A) + ")";
auto data = massTable.find(key);
if (data == massTable.end())
{
NAV_ERROR("Invalid nucleus at MassMap::FindMass()! Z: {0} A: {1}", Z, A);
return 0.0;
}
return data->second;
}
//returns element symbol
std::string MassMap::FindSymbol(int Z, int A)
{
NAV_PROFILE_FUNCTION();
auto data = elementTable.find(Z);
if (data == elementTable.end())
{
NAV_ERROR("Invalid nucleus at MassMap::FindSymbol()! Z: {0} A: {1}", Z, A);
return "";
}
std::string fullsymbol = std::to_string(A) + data->second;
return fullsymbol;
}

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NavProject/src/MassMap.h
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/*
MassMap.h
A represnetation of the AMDC mass table. We provide capability to retrieve the mass of an isotope
as well as the isotopic symbol. This sort of code is pretty ubiquitous in flexible nuclear physics
analysis.
GWM -- Feb 2022
*/
#ifndef MASS_MAP_H
#define MASS_MAP_H
#include "Navigator.h"
class MassMap
{
public:
MassMap();
~MassMap();
double FindMass(int Z, int A);
std::string FindSymbol(int Z, int A);
private:
std::unordered_map<std::string, double> massTable;
std::unordered_map<int, std::string> elementTable;
//constants
static constexpr double u_to_mev = 931.4940954;
static constexpr double electron_mass = 0.000548579909;
};
#endif

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NavProject/src/SPSAnalysisStage.cpp
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/*
SPSAnalysisStage.cpp
Example of a user AnalysisStage. This one is based around the SE-SPS detector system in FoxLab at FSU.
GWM -- Feb 2022
*/
#include "SPSAnalysisStage.h"
namespace Navigator {
//Construct each NavParameter with their unique name. Then bind them to the SpectrumManager.
SPSAnalysisStage::SPSAnalysisStage() :
AnalysisStage("SPSAnalysis"), delayFLTime("delayFLTime"), delayFRTime("delayFRTime"), delayBLTime("delayBLTime"), delayBRTime("delayBRTime"), x1("x1"), x2("x2"), xavg("xavg"),
scintLeft("scintLeft"), anodeBack("anodeBack"), anodeFront("anodeFront"), cathode("cathode"), xavg_sabreCoinc("xavg_sabreCoinc"), x1_weight("x1_weight"), x2_weight("x2_weight")
{
NAV_PROFILE_FUNCTION();
SpectrumManager& manager = SpectrumManager::GetInstance();
manager.BindParameter(delayFLTime);
manager.BindParameter(delayFRTime);
manager.BindParameter(delayBLTime);
manager.BindParameter(delayBRTime);
//Bind parameters with some default histograms. Saves us the effort of making them in the UI.
manager.BindParameter(x1, 600, -300.0, 300.0);
manager.BindParameter(x2, 600, -300.0, 300.0);
manager.BindParameter(xavg, 600, -300.0, 300.0);
manager.BindParameter(scintLeft, 4096, 0.0, 4096.0);
manager.BindParameter(anodeBack, 4096, 0.0, 4096.0);
manager.BindParameter(anodeFront, 4096, 0.0, 4096.0);
manager.BindParameter(cathode, 4096, 0.0, 4096);
manager.BindParameter(xavg_sabreCoinc, 600, -300.0, 300.0);
std::vector<std::string> sabre_list;
for (int i = 0; i < 127; i++)
{
sabre_list.push_back("sabre_" + std::to_string(i));
sabre.emplace_back(sabre_list[i]);
manager.BindParameter(sabre[i]);
}
//If you want to make a histogram default available, you can add one like this.
manager.AddHistogramSummary(HistogramArgs("sabre_summary", "", 512, 0.0, 16384), sabre_list);
//Note that if you save a config, the config rep of this histogram will supercede this version.
manager.BindVariable(x1_weight);
manager.BindVariable(x2_weight);
}
SPSAnalysisStage::~SPSAnalysisStage() {}
//Do some physics!
void SPSAnalysisStage::AnalyzePhysicsEvent(const NavEvent& event)
{
NAV_PROFILE_FUNCTION();
//Most analysis stages will start kinda like this. Take the raw event data and
//put it into NavParameters using the hit id. Switches are perfect for this. Can also
//create mapping classes to use text-file-based id association (commonly called channel maps).
bool sabreFlag = false;
for(auto& hit : event)
{
if (hit.id < 127)
{
sabreFlag = true;
if (hit.longEnergy > sabre[hit.id].GetValue())
sabre[hit.id].SetValue(hit.longEnergy);
}
switch (hit.id)
{
case 129:
{
if (hit.longEnergy > scintLeft.GetValue())
scintLeft.SetValue(hit.longEnergy);
break;
}
case 135:
{
if (hit.longEnergy > cathode.GetValue())
cathode.SetValue(hit.longEnergy);
break;
}
case 136:
{
if (!delayFLTime.IsValid())
delayFLTime.SetValue(hit.timestamp / 1.0e3);
break;
}
case 137:
{
if (!delayFRTime.IsValid())
delayFRTime.SetValue(hit.timestamp / 1.0e3);
break;
}
case 138:
{
if (!delayBLTime.IsValid())
delayBLTime.SetValue(hit.timestamp / 1.0e3);
break;
}
case 139:
{
if (!delayBRTime.IsValid())
delayBRTime.SetValue(hit.timestamp / 1.0e3);
break;
}
case 141:
{
if (hit.longEnergy > anodeFront.GetValue())
anodeFront.SetValue(hit.longEnergy);
break;
}
case 143:
{
if (hit.longEnergy > anodeBack.GetValue())
anodeBack.SetValue(hit.longEnergy);
break;
}
}
}
//If you want to use parameters to calculate another parameter, you
//need to check that the parameter is valid (set in this event)!
if(delayFLTime.IsValid() && delayFRTime.IsValid())
x1.SetValue((delayFLTime.GetValue() - delayFRTime.GetValue())*0.5*0.4762);
if(delayBLTime.IsValid() && delayBRTime.IsValid())
x2.SetValue((delayBLTime.GetValue() - delayBRTime.GetValue())*0.5*0.5051);
if (x1.IsValid() && x2.IsValid())
{
xavg.SetValue(x1_weight.GetValue() * x1.GetValue() + x2_weight.GetValue() * x2.GetValue());
if (sabreFlag)
xavg_sabreCoinc.SetValue(xavg.GetValue());
}
}
}

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/*
SPSAnalysisStage.h
Example of a user AnalysisStage. This one is based around the SE-SPS detector system in FoxLab at FSU.
GWM -- Feb 2022
*/
#include "Navigator.h"
namespace Navigator {
class SPSAnalysisStage : public AnalysisStage
{
public:
SPSAnalysisStage();
virtual ~SPSAnalysisStage();
virtual void AnalyzePhysicsEvent(const NavEvent& event) override;
private:
//Create a bunch of parameters
Parameter delayFLTime;
Parameter delayFRTime;
Parameter delayBLTime;
Parameter delayBRTime;
Parameter x1;
Parameter x2;
Parameter xavg;
Parameter scintLeft;
Parameter anodeBack;
Parameter anodeFront;
Parameter cathode;
Parameter xavg_sabreCoinc;
std::vector<Parameter> sabre;
//Create a few variables
Variable x1_weight;
Variable x2_weight;
};
}

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/*
SPSInputLayer.cpp
An example of what a user created layer might look like. This is how one would extend the base editor to have more
functionality, specific to their experiment/setup. In this case, we provide inputs for reaction information so that
the kinematic shift of the SE-SPS focal plane can be calculated, and weights for tracing particle trajectories are
produced for use in analysis (as NavVariables).
A reminder that these layers should not be that intense. The more work that is shoved into the UI, the less responsive
and more sluggish overall the UI will become. The vast bulk of the analysis work should be left to the PhysicsLayer which has its own
thread to work upon.
GWM -- Feb 2022
*/
#include "SPSInputLayer.h"
#include "imgui.h"
namespace Navigator {
SPSInputLayer::SPSInputLayer() :
Layer("SPSInputLayer"), x1_weight("x1_weight"), x2_weight("x2_weight"), m_bfield(0.0), m_theta(0.0), m_beamKE(0.0),
m_rxnEqn("")
{
for (int i = 0; i < 2; i++)
{
m_targNums[i] = 0;
m_projNums[i] = 0;
m_ejectNums[i] = 0;
m_residNums[i] = 0;
}
SpectrumManager& manager = SpectrumManager::GetInstance();
manager.BindVariable(x1_weight);
manager.BindVariable(x2_weight);
}
SPSInputLayer::~SPSInputLayer() {}
void SPSInputLayer::OnAttach() {}
void SPSInputLayer::OnDetach() {}
void SPSInputLayer::OnUpdate(Timestep& step) {}
void SPSInputLayer::OnEvent(Event& event) {}
void SPSInputLayer::OnImGuiRender()
{
NAV_PROFILE_FUNCTION();
if (ImGui::Begin("SPS Input"))
{
//Create widgets for all of our inputs
ImGui::InputDouble("Bfield(kG)", &m_bfield, 0.01, 0.1);
ImGui::InputDouble("Theta(deg)", &m_theta, 0.1, 1.0);
ImGui::InputDouble("BeamKE(MeV)", &m_beamKE, 0.1, 1.0);
ImGui::InputInt2("Target Z,A", m_targNums);
ImGui::InputInt2("Projectile Z,A", m_projNums);
ImGui::InputInt2("Ejectile Z,A", m_ejectNums);
if (ImGui::Button("Set"))
{
//We dont want to calculate the weights every frame, so
//we lock that calculation behind a button.
UpdateWeights();
}
//Display some info about the internal state
ImGui::Text("-------Current Settings-------");
ImGui::Text("Reaction Equation: ");
ImGui::SameLine();
ImGui::Text(m_rxnEqn.c_str());
ImGui::Text("X1 Weight: %f", x1_weight.GetValue());
ImGui::Text("X2 Weight: %f", x2_weight.GetValue());
}
ImGui::End();
}
void SPSInputLayer::UpdateWeights()
{
NAV_PROFILE_FUNCTION();
m_rxnEqn = ""; //reset
//Calculate residual nucleus from reaction
for (int i = 0; i < 2; i++)
m_residNums[i] = m_targNums[i] + m_projNums[i] - m_ejectNums[i];
if (m_residNums[0] < 0 || m_residNums[1] <= 0)
{
NAV_ERROR("Invalid residual nucleus at SPSInputLayer::UpdateMasses()! ZR: {0} AR: {1}", m_residNums[0], m_residNums[1]);
return;
}
if (m_bfield == 0.0 || m_beamKE == 0.0)
{
NAV_ERROR("Invaild kinematic settings at SPSInputLayer::UpdateWeights()! BeamKE: {0} Bfield: {1}", m_beamKE, m_bfield);
return;
}
//Obtain masses from the AMDC table
double targMass = m_masses.FindMass(m_targNums[0], m_targNums[1]);
double projMass = m_masses.FindMass(m_projNums[0], m_projNums[1]);
double ejectMass = m_masses.FindMass(m_ejectNums[0], m_ejectNums[1]);
double residMass = m_masses.FindMass(m_residNums[0], m_residNums[1]);
if (targMass == 0.0 || projMass == 0.0 || ejectMass == 0.0 || residMass == 0.0)
return;
std::string temp;
temp = m_masses.FindSymbol(m_targNums[0], m_targNums[1]);
m_rxnEqn += temp + "(";
temp = m_masses.FindSymbol(m_projNums[0], m_projNums[1]);
m_rxnEqn += temp + ",";
temp = m_masses.FindSymbol(m_ejectNums[0], m_ejectNums[1]);
m_rxnEqn += temp + ")";
temp = m_masses.FindSymbol(m_residNums[0], m_residNums[1]);
m_rxnEqn += temp;
double theta_rad = m_theta * c_deg2rad; //convert to radians
double bfield_t = m_bfield * 0.1; //convert to tesla
double Q = targMass + projMass - ejectMass - residMass;
//kinematics a la Iliadis p.590
double term1 = std::sqrt(projMass * ejectMass * m_beamKE) / (ejectMass + residMass) * std::cos(theta_rad);
double term2 = (m_beamKE * (residMass - projMass) + residMass * Q) / (ejectMass + residMass);
double ejectKE = term1 + std::sqrt(term1 * term1 + term2);
ejectKE *= ejectKE;
//momentum
double ejectP = std::sqrt(ejectKE * (ejectKE + 2.0 * ejectMass));
//calculate rho from B a la B*rho = (proj. momentum)/(proj. charge)
double rho = (ejectP * c_mev2j) / (m_ejectNums[0] * c_e * c_C * bfield_t) * 100.0; //in cm
double K;
K = sqrt(projMass * ejectMass * m_beamKE / ejectKE);
K *= std::sin(theta_rad);
double denom = ejectMass + residMass - std::sqrt(projMass * ejectMass * m_beamKE / ejectKE) * std::cos(theta_rad);
K /= denom;
double zshift = -1 * rho * c_spsDisp * c_spsMag * K; //delta-Z in cm
x1_weight.SetValue((0.5 - zshift / c_wireDist));
x2_weight.SetValue((1.0 - x1_weight.GetValue()));
}
}

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/*
SPSInputLayer.h
An example of what a user created layer might look like. This is how one would extend the base editor to have more
functionality, specific to their experiment/setup. In this case, we provide inputs for reaction information so that
the kinematic shift of the SE-SPS focal plane can be calculated, and weights for tracing particle trajectories are
produced for use in analysis (as Variables).
A reminder that these layers should not be that intense. The more work that is shoved into the UI, the less responsive
and more sluggish overall the UI will become. The vast bulk of the analysis work should be left to the PhysicsLayer which has its own
thread to work upon.
GWM -- Feb 2022
*/
#ifndef SPS_INPUT_LAYER_H
#define SPS_INPUT_LAYER_H
#include "Navigator.h"
#include "MassMap.h"
namespace Navigator {
class SPSInputLayer : public Layer
{
public:
SPSInputLayer();
~SPSInputLayer();
virtual void OnAttach() override;
virtual void OnDetach() override;
virtual void OnUpdate(Timestep& step) override;
virtual void OnEvent(Event& event) override; //If you want to respond to events
virtual void OnImGuiRender() override; //"Main" function
private:
void UpdateWeights();
//Variables for use in analysis
Variable x1_weight;
Variable x2_weight;
//UI facing inputs
double m_bfield; //kG
double m_theta; //deg
double m_beamKE; //MeV
//Z, A inputs for reaction nuclei
int m_targNums[2];
int m_projNums[2];
int m_ejectNums[2];
int m_residNums[2];
//Text for UI
std::string m_rxnEqn;
//Map for mass table
MassMap m_masses;
static constexpr double c_mev2j = 1.60218E-13; //J per MeV
static constexpr double c_e = 1.602E-19; //unit charge Coulombs
static constexpr double c_C = 2.9979E8; //speed of light m/s
static constexpr double c_spsDisp = 1.96; //dispersion (x/rho)
static constexpr double c_spsMag = 0.39; //magnification in x
static constexpr double c_wireDist = 4.28625; //FPD anode wire separation in cm
static constexpr double c_deg2rad = 3.14159265358979323846 / 180.0; //pi/180
};
}
#endif

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NavProject/src/main.cpp
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/*
main.cpp
Entry point for the example NavProject. Also contains example of a simple user Navigator::Application.
GWM -- Feb 2022
*/
#include "Navigator.h"
#include "SPSAnalysisStage.h"
#include "SPSInputLayer.h"
//User application class. Pushes user analysis stages.
class SPSApp : public Navigator::Application
{
public:
SPSApp() :
Navigator::Application()
{
PushLayer(new Navigator::SPSInputLayer());
//PushLayer(new Navigator::TestServerLayer());
PushAnalysisStage(new Navigator::SPSAnalysisStage());
}
};
//Define the creation function to make our user application
Navigator::Application* Navigator::CreateApplication() { return new SPSApp(); }
//Make sure to initialize log BEFORE creating application.
int main(int argc, const char** argv)
{
Navigator::Logger::Init();
NAV_TRACE("Logger Initialized!");
NAV_PROFILE_BEGIN_SESSION("Startup", "navprofile_startup.json");
auto app = Navigator::CreateApplication();
NAV_PROFILE_END_SESSION();
NAV_PROFILE_BEGIN_SESSION("Runtime", "navprofile_runtime.json");
app->Run();
NAV_PROFILE_END_SESSION();
NAV_PROFILE_BEGIN_SESSION("Shutdown", "navprofile_shutdown.json");
delete app;
NAV_PROFILE_END_SESSION();
}