Added deadlayer considerations to SabreEfficiency, fleshed out cross products

include/Kinematics.h

@@ -18,6 +18,8 @@ struct NucData {
 	double p = -1;
 	double theta = -1;
 	double phi = -1;
+	int Z = -1;
+	int A = -1;
 };
 
 class Kinematics {

include/SabreDetector.h

@@ -83,6 +83,7 @@ public:
 	inline double GetPhiCentral() { return m_phiCentral; };
 	inline double GetTiltAngle() { return m_tilt; };
 	inline Mask::Vec3 GetTranslation() { return m_translation; };
+	inline Mask::Vec3 GetNormTilted() { return TransformToTiltedFrame(m_norm_flat); };
 
 
 private:
@@ -163,6 +164,7 @@ private:
 	Mask::YRotation m_YRot;
 	Mask::ZRotation m_ZRot;
 	double m_deltaR_flat, m_deltaR_flat_ring, m_deltaPhi_flat_wedge;
+	Mask::Vec3 m_norm_flat;
 
 	std::vector<std::vector<Mask::Vec3>> m_ringCoords_flat, m_wedgeCoords_flat;
 	std::vector<std::vector<Mask::Vec3>> m_ringCoords_tilt, m_wedgeCoords_tilt;

include/SabreEfficiency.h

@@ -2,6 +2,7 @@
 #define SABREEFFICIENCY_H
 
 #include "SabreDetector.h"
+#include "Target.h"
 
 class SabreEfficiency {
 public:
@@ -19,6 +20,7 @@ private:
 	std::vector<SabreDetector> detectors;
     std::vector<double> ringxs, ringys, ringzs;
     std::vector<double> wedgexs, wedgeys, wedgezs;
+	Target deadlayer;
 
 
 	//Sabre constants
@@ -34,8 +36,9 @@ private:
     const double PHI3 = 18.0;
     const double PHI4 = 90.0;
     const double DEG2RAD = M_PI/180.0;
+    static constexpr double DEADLAYER_THIN = 50 * 1e-7 * 2.3296 * 1e6; // ug/cm^2 (50 nm thick * density)
 
-    const double ENERGY_THRESHOLD = 0.1; //in MeV
+    const double ENERGY_THRESHOLD = 0.2; //in MeV
 
 };
 

input.txt

@@ -1,31 +1,26 @@
 ----------Data Information----------
-OutputFile: /media/gordon/b6414c35-ec1f-4fc1-83bc-a6b68ca4325a/gwm17/test_newkine.root
+OutputFile: /data1/gwm17/test_dead.root
 SaveTree: yes
 SavePlots: yes
 ----------Reaction Information----------
-ReactionType: 0
+ReactionType: 2
 Z	A (order is target, projectile, ejectile, break1, break3)
-5	9
-0	0
+6	12
+2	3
+1	2
 1	1
 ----------Target Information----------
 Name: test_targ
-Layers: 2
+Layers: 1
 ~Layer1
-Thickness(ug/cm^2): 0
+Thickness(ug/cm^2): 40
 Z	A	Stoich
 6	12	1
 0
 ~
-~Layer2
-Thickness(ug/cm^2): 0
-Z	A	Stoich
-5	9	1
-0
-~
 ----------Sampling Information----------
 NumberOfSamples: 1000000
 BeamMeanEnergy(MeV): 24 BeamEnergySigma(MeV): 0.001
-EjectileThetaMin(deg): 20.0 EjectileThetaMax(deg): 20.0
-ResidualExMean(MeV): 16.8 ResidualExSigma(MeV): 0.038
+EjectileThetaMin(deg): 3.0 EjectileThetaMax(deg): 3.0
+ResidualExMean(MeV): 2.364 ResidualExSigma(MeV): 0.0317
 --------------------------------------

src/Kinematics.cpp

@@ -138,6 +138,8 @@ NucData Kinematics::ConvertNucleus(const Nucleus& nuc) {
 	datum.theta = nuc.GetTheta();
 	datum.phi = nuc.GetPhi();
 	datum.Ex = nuc.GetExcitationEnergy();
+	datum.Z = nuc.GetZ();
+	datum.A = nuc.GetA();
 	return datum;
 }
 

src/SabreDetector.cpp

@@ -52,7 +52,7 @@
 #include "SabreDetector.h"
 
 SabreDetector::SabreDetector() :
-m_Router(0.1351), m_Rinner(0.0326), m_deltaPhi_flat(54.4*deg2rad), m_phiCentral(0.0), m_tilt(0.0), m_translation(0.,0.,0.)
+m_Router(0.1351), m_Rinner(0.0326), m_deltaPhi_flat(54.4*deg2rad), m_phiCentral(0.0), m_tilt(0.0), m_translation(0.,0.,0.), m_norm_flat(0,0,1.0)
 {
 	m_YRot.SetAngle(m_tilt);
 	m_ZRot.SetAngle(m_phiCentral);
@@ -78,7 +78,7 @@ m_Router(0.1351), m_Rinner(0.0326), m_deltaPhi_flat(54.4*deg2rad), m_phiCentral(
 }
 
 SabreDetector::SabreDetector(double Rin, double Rout, double deltaPhi_flat, double phiCentral, double tiltFromVert, double zdist, double xdist, double ydist) :
-m_Router(Rout), m_Rinner(Rin), m_deltaPhi_flat(deltaPhi_flat), m_phiCentral(phiCentral), m_tilt(tiltFromVert), m_translation(xdist, ydist, zdist)
+m_Router(Rout), m_Rinner(Rin), m_deltaPhi_flat(deltaPhi_flat), m_phiCentral(phiCentral), m_tilt(tiltFromVert), m_translation(xdist, ydist, zdist), m_norm_flat(0,0,1.0)
 {
 	m_YRot.SetAngle(m_tilt);
 	m_ZRot.SetAngle(m_phiCentral);

src/SabreEfficiency.cpp

@@ -1,5 +1,6 @@
 #include "SabreEfficiency.h"
 #include "Kinematics.h"
+#include <fstream>
 #include <iostream>
 #include <TFile.h>
 #include <TTree.h>
@@ -9,7 +10,7 @@
 #include <TCanvas.h>
 
 SabreEfficiency::SabreEfficiency() : 
-	m_rxn_type(-1)
+	m_rxn_type(-1), deadlayer(DEADLAYER_THIN)
 {
 	detectors.reserve(5);
 	detectors.emplace_back(INNER_R,OUTER_R,PHI_COVERAGE*DEG2RAD,PHI0*DEG2RAD,TILT*DEG2RAD,DIST_2_TARG);
@@ -40,6 +41,10 @@ SabreEfficiency::SabreEfficiency() :
  			}
  		}
  	}
+	std::vector<int> dead_z = {14};
+	std::vector<int> dead_a = {28};
+	std::vector<int> dead_stoich = {1};
+	deadlayer.SetElements(dead_z, dead_a, dead_stoich);
 }
 
 SabreEfficiency::~SabreEfficiency() {}
@@ -184,11 +189,15 @@ void SabreEfficiency::Run2Step(const char* file) {
 	std::vector<double> b1_phis, b2_phis;
 	std::vector<double> b1_kes, b2_kes;
 
+	double avg_ke_per_pixel[640] = {0};
+	int hits_per_pixel[640] = {0};
+
 	//Progress tracking
 	int percent5 = nevents*0.05;
 	int count = 0;
 	int npercent = 0;
 
+	Mask::Vec3 coords;
 	for(int i=0; i<tree->GetEntries(); i++) {
 		if(++count == percent5) {//Show progress every 5%
 			npercent++;
@@ -199,8 +208,19 @@ void SabreEfficiency::Run2Step(const char* file) {
 		tree->GetEntry(i);
 
 		if(break1->KE >= ENERGY_THRESHOLD) {
-			for(auto& det : detectors) {
-				if(det.GetTrajectoryCoordinates(break1->theta, break1->phi).GetX() != 0) {
+			for(int j=0; j<5; j++) {
+				auto& det = detectors[j];
+				auto chan = det.GetTrajectoryRingWedge(break1->theta, break1->phi);
+				if(chan.first != -1 && chan.second != -1) {
+					coords = det.GetTrajectoryCoordinates(break1->theta, break1->phi);
+					double thetaIncident = std::acos(coords.Dot(det.GetNormTilted())/(coords.GetR()));
+					double eloss = deadlayer.getEnergyLossTotal(break1->Z, break1->A, break1->KE, M_PI - thetaIncident);
+					if((break1->KE - eloss) <= ENERGY_THRESHOLD) break;
+					
+					int pixel = (chan.first + 16*chan.second) + 128*j; //calc pixel
+					avg_ke_per_pixel[pixel] += (break1->KE - eloss);
+					hits_per_pixel[pixel]++;
+
 					b1_thetas.push_back(break1->theta);
 					b1_phis.push_back(break1->phi);
 					b1_kes.push_back(break1->KE);
@@ -227,6 +247,14 @@ void SabreEfficiency::Run2Step(const char* file) {
 	TParameter<double> break1_eff("Light Breakup Efficiency", b1eff);
 	TParameter<double> break2_eff("Heavy Breakup Efficiency", b2eff);
 
+	std::ofstream output("/data1/gwm17/test_dead_pixels.txt");
+	output<<"Average particle kinetic energy (MeV) per pixel (pixel = (ringch + wedgech*16) + 128*detID)"<<std::endl;
+	for(int i=0; i<640; i++) {
+		if(hits_per_pixel[i] == 0) output<<i<<" "<<0.0<<std::endl;
+		else output<<i<<" "<<((double) (avg_ke_per_pixel[i]/hits_per_pixel[i]))<<std::endl;
+	}
+	output.close();
+
 	input->cd();
 	break1_eff.Write();
 	break2_eff.Write();

src/Target.cpp

@@ -40,25 +40,29 @@ bool Target::ContainsElement(int z, int a) {
 /*Calculates energy loss for travelling all the way through the target*/
 double Target::getEnergyLossTotal(int zp, int ap, double startEnergy, double theta) {
   if(theta == PI/2.) return startEnergy;
-  else return eloss.GetEnergyLoss(zp, ap, startEnergy, thickness/fabs(cos(theta)));
+  else if(theta > PI/2.) theta = PI - theta;
+  return eloss.GetEnergyLoss(zp, ap, startEnergy, thickness/fabs(cos(theta)));
 }
 
 /*Calculates energy loss for travelling halfway through the target*/
 double Target::getEnergyLossHalf(int zp, int ap, double startEnergy, double theta) {
   if(theta == PI/2.) return startEnergy;
-  else return eloss.GetEnergyLoss(zp, ap, startEnergy, thickness/(2.0*fabs(cos(theta))));
+  else if(theta > PI/2.) theta = PI - theta;
+  return eloss.GetEnergyLoss(zp, ap, startEnergy, thickness/(2.0*fabs(cos(theta))));
 }
 
 /*Calculates reverse energy loss for travelling all the way through the target*/
 double Target::getReverseEnergyLossTotal(int zp, int ap, double finalEnergy, double theta) {
   if(theta == PI/2.) return finalEnergy;
-  else return eloss.GetReverseEnergyLoss(zp, ap, finalEnergy, thickness/fabs(cos(theta)));
+  else if(theta > PI/2.) theta = PI - theta;
+  return eloss.GetReverseEnergyLoss(zp, ap, finalEnergy, thickness/fabs(cos(theta)));
 }
 
 /*Calculates reverse energy loss for travelling half way through the target*/
 double Target::getReverseEnergyLossHalf(int zp, int ap, double finalEnergy, double theta) {
   if(theta == PI/2.) return finalEnergy;
-  else return eloss.GetReverseEnergyLoss(zp, ap, finalEnergy, thickness/(2.0*fabs(cos(theta))));
+  else if(theta > PI/2.) theta = PI - theta;
+  return eloss.GetReverseEnergyLoss(zp, ap, finalEnergy, thickness/(2.0*fabs(cos(theta))));
 }
 
 /*Getter functions*/

src/Vec3.cpp

@@ -38,9 +38,11 @@ double Vec3::Dot(const Vec3& rhs) const {
 	return GetX()*rhs.GetX() + GetY()*rhs.GetY() + GetZ()*rhs.GetZ();
 }
 
-//Unimplemented
 Vec3 Vec3::Cross(const Vec3& rhs) const {
-	return Vec3(0.,0.,0.);
+	double x = GetY()*rhs.GetZ() - GetZ()*rhs.GetY();
+	double y = GetZ()*rhs.GetX() - GetX()*rhs.GetZ();
+	double z = GetX()*rhs.GetY() - GetY()*rhs.GetX();
+	return Vec3(x,y,z);
 }
 
 };