/*
$Log$
+Revision 1.31 2002/02/11 14:25:27 cblume
+Geometry update, compressed hit structure
+
+Revision 1.30 2001/05/21 16:45:47 hristov
+Last minute changes (C.Blume)
+
+Revision 1.29 2001/05/16 14:57:28 alibrary
+New files for folders and Stack
+
+Revision 1.28 2001/05/07 08:03:22 cblume
+Generate also hits in the amplification region
+
+Revision 1.27 2001/03/30 14:40:15 cblume
+Update of the digitization parameter
+
+Revision 1.26 2000/11/30 17:38:08 cblume
+Changes to get in line with new STEER and EVGEN
+
+Revision 1.25 2000/11/15 14:30:16 cblume
+Fixed bug in calculating detector no. of extra hit
+
+Revision 1.24 2000/11/10 14:58:36 cblume
+Introduce additional hit with amplitude 0 at the chamber borders
+
+Revision 1.23 2000/11/01 14:53:21 cblume
+Merge with TRD-develop
+
+Revision 1.17.2.5 2000/10/15 23:40:01 cblume
+Remove AliTRDconst
+
+Revision 1.17.2.4 2000/10/06 16:49:46 cblume
+Made Getters const
+
+Revision 1.17.2.3 2000/10/04 16:34:58 cblume
+Replace include files by forward declarations
+
+Revision 1.17.2.2 2000/09/18 13:50:17 cblume
+Include TR photon generation and adapt to new AliTRDhit
+
+Revision 1.22 2000/06/27 13:08:50 cblume
+Changed to Copy(TObject &A) to appease the HP-compiler
+
+Revision 1.21 2000/06/09 11:10:07 cblume
+Compiler warnings and coding conventions, next round
+
+Revision 1.20 2000/06/08 18:32:58 cblume
+Make code compliant to coding conventions
+
+Revision 1.19 2000/06/07 16:27:32 cblume
+Try to remove compiler warnings on Sun and HP
+
+Revision 1.18 2000/05/08 16:17:27 cblume
+Merge TRD-develop
+
Revision 1.17.2.1 2000/05/08 14:59:16 cblume
Made inline function non-virtual. Bug fix in setting sensitive chamber
///////////////////////////////////////////////////////////////////////////////
// //
-// Transition Radiation Detector version 2 -- slow simulator //
+// Transition Radiation Detector version 1 -- slow simulator //
// //
//Begin_Html
/*
// //
///////////////////////////////////////////////////////////////////////////////
+#include <stdlib.h>
+
#include <TMath.h>
#include <TVector.h>
#include <TRandom.h>
+#include <TF1.h>
+#include <TLorentzVector.h>
#include "AliRun.h"
#include "AliMC.h"
#include "AliConst.h"
#include "AliTRDv1.h"
+#include "AliTRDhit.h"
#include "AliTRDmatrix.h"
#include "AliTRDgeometry.h"
+#include "AliTRDsim.h"
ClassImp(AliTRDv1)
+
+//_____________________________________________________________________________
+AliTRDv1::AliTRDv1():AliTRD()
+{
+ //
+ // Default constructor
+ //
+
+ fSensSelect = 0;
+ fSensPlane = -1;
+ fSensChamber = -1;
+ fSensSector = -1;
+ fSensSectorRange = 0;
+
+ fDeltaE = NULL;
+ fTR = NULL;
+
+}
//_____________________________________________________________________________
AliTRDv1::AliTRDv1(const char *name, const char *title)
// Standard constructor for Transition Radiation Detector version 1
//
- fIdSens = 0;
+ fSensSelect = 0;
+ fSensPlane = -1;
+ fSensChamber = -1;
+ fSensSector = -1;
+ fSensSectorRange = 0;
- fIdChamber1 = 0;
- fIdChamber2 = 0;
- fIdChamber3 = 0;
+ fDeltaE = NULL;
+ fTR = NULL;
- fSensSelect = 0;
- fSensPlane = -1;
- fSensChamber = -1;
- fSensSector = -1;
+ SetBufferSize(128000);
- fDeltaE = NULL;
+}
- SetBufferSize(128000);
+//_____________________________________________________________________________
+AliTRDv1::AliTRDv1(const AliTRDv1 &trd)
+{
+ //
+ // Copy constructor
+ //
+
+ ((AliTRDv1 &) trd).Copy(*this);
}
//_____________________________________________________________________________
AliTRDv1::~AliTRDv1()
{
+ //
+ // AliTRDv1 destructor
+ //
if (fDeltaE) delete fDeltaE;
+ if (fTR) delete fTR;
}
+//_____________________________________________________________________________
+AliTRDv1 &AliTRDv1::operator=(const AliTRDv1 &trd)
+{
+ //
+ // Assignment operator
+ //
+
+ if (this != &trd) ((AliTRDv1 &) trd).Copy(*this);
+ return *this;
+
+}
+
+//_____________________________________________________________________________
+void AliTRDv1::Copy(TObject &trd)
+{
+ //
+ // Copy function
+ //
+
+ ((AliTRDv1 &) trd).fSensSelect = fSensSelect;
+ ((AliTRDv1 &) trd).fSensPlane = fSensPlane;
+ ((AliTRDv1 &) trd).fSensChamber = fSensChamber;
+ ((AliTRDv1 &) trd).fSensSector = fSensSector;
+ ((AliTRDv1 &) trd).fSensSectorRange = fSensSectorRange;
+
+ fDeltaE->Copy(*((AliTRDv1 &) trd).fDeltaE);
+ fTR->Copy(*((AliTRDv1 &) trd).fTR);
+
+}
+
//_____________________________________________________________________________
void AliTRDv1::CreateGeometry()
{
//
// Check that FRAME is there otherwise we have no place where to put the TRD
- AliModule* FRAME = gAlice->GetModule("FRAME");
- if (!FRAME) return;
+ AliModule* frame = gAlice->GetModule("FRAME");
+ if (!frame) return;
// Define the chambers
AliTRD::CreateGeometry();
}
+//_____________________________________________________________________________
+void AliTRDv1::CreateTRhit(Int_t det)
+{
+ //
+ // Creates an electron cluster from a TR photon.
+ // The photon is assumed to be created a the end of the radiator. The
+ // distance after which it deposits its energy takes into account the
+ // absorbtion of the entrance window and of the gas mixture in drift
+ // volume.
+ //
+
+ // PDG code electron
+ const Int_t kPdgElectron = 11;
+
+ // Ionization energy
+ const Float_t kWion = 22.04;
+
+ // Maximum number of TR photons per track
+ const Int_t kNTR = 50;
+
+ TLorentzVector mom, pos;
+
+ // Create TR at the entrance of the chamber
+ if (gMC->IsTrackEntering()) {
+
+ // Create TR only for electrons
+ Int_t iPdg = gMC->TrackPid();
+ if (TMath::Abs(iPdg) != kPdgElectron) return;
+
+ Float_t eTR[kNTR];
+ Int_t nTR;
+
+ // Create TR photons
+ gMC->TrackMomentum(mom);
+ Float_t pTot = mom.Rho();
+ fTR->CreatePhotons(iPdg,pTot,nTR,eTR);
+ if (nTR > kNTR) {
+ printf("AliTRDv1::CreateTRhit -- ");
+ printf("Boundary error: nTR = %d, kNTR = %d\n",nTR,kNTR);
+ exit(1);
+ }
+
+ // Loop through the TR photons
+ for (Int_t iTR = 0; iTR < nTR; iTR++) {
+
+ Float_t energyMeV = eTR[iTR] * 0.001;
+ Float_t energyeV = eTR[iTR] * 1000.0;
+ Float_t absLength = 0;
+ Float_t sigma = 0;
+
+ // Take the absorbtion in the entrance window into account
+ Double_t muMy = fTR->GetMuMy(energyMeV);
+ sigma = muMy * fFoilDensity;
+ absLength = gRandom->Exp(sigma);
+ if (absLength < AliTRDgeometry::MyThick()) continue;
+
+ // The absorbtion cross sections in the drift gas
+ if (fGasMix == 1) {
+ // Gas-mixture (Xe/CO2)
+ Double_t muXe = fTR->GetMuXe(energyMeV);
+ Double_t muCO = fTR->GetMuCO(energyMeV);
+ sigma = (0.85 * muXe + 0.15 * muCO) * fGasDensity;
+ }
+ else {
+ // Gas-mixture (Xe/Isobutane)
+ Double_t muXe = fTR->GetMuXe(energyMeV);
+ Double_t muBu = fTR->GetMuBu(energyMeV);
+ sigma = (0.97 * muXe + 0.03 * muBu) * fGasDensity;
+ }
+
+ // The distance after which the energy of the TR photon
+ // is deposited.
+ absLength = gRandom->Exp(sigma);
+ if (absLength > AliTRDgeometry::DrThick()) continue;
+
+ // The position of the absorbtion
+ Float_t posHit[3];
+ gMC->TrackPosition(pos);
+ posHit[0] = pos[0] + mom[0] / pTot * absLength;
+ posHit[1] = pos[1] + mom[1] / pTot * absLength;
+ posHit[2] = pos[2] + mom[2] / pTot * absLength;
+
+ // Create the charge
+ Int_t q = ((Int_t) (energyeV / kWion));
+
+ // Add the hit to the array. TR photon hits are marked
+ // by negative charge
+ AddHit(gAlice->CurrentTrack(),det,posHit,-q,kTRUE);
+
+ }
+
+ }
+
+}
+
//_____________________________________________________________________________
void AliTRDv1::Init()
{
AliTRD::Init();
- printf(" Slow simulator\n\n");
+ if(fDebug) printf("%s: Slow simulator\n",ClassName());
if (fSensSelect) {
if (fSensPlane >= 0)
printf(" Only plane %d is sensitive\n",fSensPlane);
if (fSensChamber >= 0)
printf(" Only chamber %d is sensitive\n",fSensChamber);
- if (fSensSector >= 0)
- printf(" Only sector %d is sensitive\n",fSensSector);
+ if (fSensSector >= 0) {
+ Int_t sens1 = fSensSector;
+ Int_t sens2 = fSensSector + fSensSectorRange;
+ sens2 -= ((Int_t) (sens2 / AliTRDgeometry::Nsect()))
+ * AliTRDgeometry::Nsect();
+ printf(" Only sectors %d - %d are sensitive\n",sens1,sens2-1);
+ }
}
+ if (fTR)
+ printf("%s: TR simulation on\n",ClassName());
+ else
+ printf("%s: TR simulation off\n",ClassName());
printf("\n");
// First ionization potential (eV) for the gas mixture (90% Xe + 10% CO2)
// Maximum energy (50 keV);
const Float_t kEend = 50000.0;
// Ermilova distribution for the delta-ray spectrum
- Float_t Poti = TMath::Log(kPoti);
- Float_t Eend = TMath::Log(kEend);
- fDeltaE = new TF1("deltae",Ermilova,Poti,Eend,0);
+ Float_t poti = TMath::Log(kPoti);
+ Float_t eEnd = TMath::Log(kEend);
+ fDeltaE = new TF1("deltae",Ermilova,poti,eEnd,0);
+
+ if(fDebug) {
+ printf("%s: ",ClassName());
+ for (Int_t i = 0; i < 80; i++) printf("*");
+ printf("\n");
+ }
- // Identifier of the sensitive volume (drift region)
- fIdSens = gMC->VolId("UL05");
+}
- // Identifier of the TRD-driftchambers
- fIdChamber1 = gMC->VolId("UCIO");
- fIdChamber2 = gMC->VolId("UCIM");
- fIdChamber3 = gMC->VolId("UCII");
+//_____________________________________________________________________________
+AliTRDsim *AliTRDv1::CreateTR()
+{
+ //
+ // Enables the simulation of TR
+ //
- for (Int_t i = 0; i < 80; i++) printf("*");
- printf("\n");
+ fTR = new AliTRDsim();
+ return fTR;
}
// Defines the hit-sensitive sector (0-17)
//
+ SetSensSector(isector,1);
+
+}
+
+//_____________________________________________________________________________
+void AliTRDv1::SetSensSector(Int_t isector, Int_t nsector)
+{
+ //
+ // Defines a range of hit-sensitive sectors. The range is defined by
+ // <isector> (0-17) as the starting point and <nsector> as the number
+ // of sectors to be included.
+ //
+
if ((isector < 0) || (isector > 17)) {
- printf("Wrong input value: %d\n",isector);
+ printf("Wrong input value <isector>: %d\n",isector);
printf("Use standard setting\n");
- fSensSector = -1;
- fSensSelect = 0;
+ fSensSector = -1;
+ fSensSectorRange = 0;
+ fSensSelect = 0;
return;
}
- fSensSelect = 1;
- fSensSector = isector;
+ if ((nsector < 1) || (nsector > 18)) {
+ printf("Wrong input value <nsector>: %d\n",nsector);
+ printf("Use standard setting\n");
+ fSensSector = -1;
+ fSensSectorRange = 0;
+ fSensSelect = 0;
+ return;
+ }
+
+ fSensSelect = 1;
+ fSensSector = isector;
+ fSensSectorRange = nsector;
}
// a spectrum taken from Ermilova et al.
//
- Int_t iIdSens, icSens;
- Int_t iIdSpace, icSpace;
- Int_t iIdChamber, icChamber;
Int_t pla = 0;
Int_t cha = 0;
Int_t sec = 0;
+ Int_t det = 0;
Int_t iPdg;
+ Int_t qTot;
- Float_t hits[4];
+ Float_t hits[3];
+ Float_t moms[3];
Float_t random[1];
Float_t charge;
Float_t aMass;
- Double_t pTot;
- Double_t qTot;
+ Double_t pTot = 0;
Double_t eDelta;
Double_t betaGamma, pp;
+ Double_t stepSize;
+
+ Bool_t drRegion = kFALSE;
+ Bool_t amRegion = kFALSE;
+
+ TString cIdCurrent;
+ TString cIdSensDr = "J";
+ TString cIdSensAm = "K";
+ Char_t cIdChamber[3];
+ cIdChamber[2] = 0;
TLorentzVector pos, mom;
- TClonesArray &lhits = *fHits;
- const Double_t kBig = 1.0E+12;
+ const Int_t kNplan = AliTRDgeometry::Nplan();
+ const Double_t kBig = 1.0E+12;
// Ionization energy
- const Float_t kWion = 22.04;
- // Maximum energy for e+ e- g for the step-size calculation
- const Float_t kPTotMax = 0.002;
+ const Float_t kWion = 22.04;
+ // Maximum momentum for e+ e- g
+ const Float_t kPTotMaxEl = 0.002;
+ // Minimum energy for the step size adjustment
+ const Float_t kEkinMinStep = 1.0e-5;
// Plateau value of the energy-loss for electron in xenon
// taken from: Allison + Comb, Ann. Rev. Nucl. Sci. (1980), 30, 253
//const Double_t kPlateau = 1.70;
// the averaged value (26/3/99)
- const Float_t kPlateau = 1.55;
+ const Float_t kPlateau = 1.55;
// dN1/dx|min for the gas mixture (90% Xe + 10% CO2)
- const Float_t kPrim = 48.0;
+ const Float_t kPrim = 48.0;
// First ionization potential (eV) for the gas mixture (90% Xe + 10% CO2)
- const Float_t kPoti = 12.1;
+ const Float_t kPoti = 12.1;
// PDG code electron
- const Int_t pdgElectron = 11;
+ const Int_t kPdgElectron = 11;
// Set the maximum step size to a very large number for all
// neutral particles and those outside the driftvolume
(!gMC->IsTrackDisappeared())) {
// Inside a sensitive volume?
- iIdSens = gMC->CurrentVolID(icSens);
- if (iIdSens == fIdSens) {
-
- iIdSpace = gMC->CurrentVolOffID(4,icSpace );
- iIdChamber = gMC->CurrentVolOffID(1,icChamber);
-
- // Calculate the energy of the delta-electrons
- eDelta = TMath::Exp(fDeltaE->GetRandom()) - kPoti;
- eDelta = TMath::Max(eDelta,0.0);
-
- // The number of secondary electrons created
- qTot = (Double_t) ((Int_t) (eDelta / kWion) + 1);
+ drRegion = kFALSE;
+ amRegion = kFALSE;
+ cIdCurrent = gMC->CurrentVolName();
+ if (cIdCurrent[1] == cIdSensDr) {
+ drRegion = kTRUE;
+ }
+ if (cIdCurrent[1] == cIdSensAm) {
+ amRegion = kTRUE;
+ }
+ if (drRegion || amRegion) {
// The hit coordinates and charge
gMC->TrackPosition(pos);
hits[0] = pos[0];
hits[1] = pos[1];
hits[2] = pos[2];
- hits[3] = qTot;
// The sector number (0 - 17)
// The numbering goes clockwise and starts at y = 0
phi = phi - 90.;
sec = ((Int_t) (phi / 20));
- // The chamber number
- // 0: outer left
- // 1: middle left
- // 2: inner
- // 3: middle right
- // 4: outer right
- if (iIdChamber == fIdChamber1)
- cha = (hits[2] < 0 ? 0 : 4);
- else if (iIdChamber == fIdChamber2)
- cha = (hits[2] < 0 ? 1 : 3);
- else if (iIdChamber == fIdChamber3)
- cha = 2;
-
- // The plane number
- // The numbering starts at the innermost plane
- pla = icChamber - TMath::Nint((Float_t) (icChamber / 7)) * 6 - 1;
+ // The plane and chamber number
+ cIdChamber[0] = cIdCurrent[2];
+ cIdChamber[1] = cIdCurrent[3];
+ Int_t idChamber = atoi(cIdChamber);
+ cha = ((Int_t) idChamber / kNplan);
+ pla = ((Int_t) idChamber % kNplan);
// Check on selected volumes
Int_t addthishit = 1;
if (fSensSelect) {
if ((fSensPlane >= 0) && (pla != fSensPlane )) addthishit = 0;
if ((fSensChamber >= 0) && (cha != fSensChamber)) addthishit = 0;
- if ((fSensSector >= 0) && (sec != fSensSector )) addthishit = 0;
+ if (fSensSector >= 0) {
+ Int_t sens1 = fSensSector;
+ Int_t sens2 = fSensSector + fSensSectorRange;
+ sens2 -= ((Int_t) (sens2 / AliTRDgeometry::Nsect()))
+ * AliTRDgeometry::Nsect();
+ if (sens1 < sens2) {
+ if ((sec < sens1) || (sec >= sens2)) addthishit = 0;
+ }
+ else {
+ if ((sec < sens1) && (sec >= sens2)) addthishit = 0;
+ }
+ }
}
// Add this hit
if (addthishit) {
- new(lhits[fNhits++]) AliTRDhit(fIshunt
- ,gAlice->CurrentTrack()
- ,fGeometry->GetDetector(pla,cha,sec)
- ,hits);
-
- // The energy loss according to Bethe Bloch
- gMC->TrackMomentum(mom);
- pTot = mom.Rho();
- iPdg = TMath::Abs(gMC->TrackPid());
- if ( (iPdg != pdgElectron) ||
- ((iPdg == pdgElectron) && (pTot < kPTotMax))) {
- aMass = gMC->TrackMass();
- betaGamma = pTot / aMass;
- pp = kPrim * BetheBloch(betaGamma);
- // Take charge > 1 into account
- charge = gMC->TrackCharge();
- if (TMath::Abs(charge) > 1) pp = pp * charge*charge;
- }
- // Electrons above 20 Mev/c are at the plateau
+ // The detector number
+ det = fGeometry->GetDetector(pla,cha,sec);
+
+ // Special hits and TR photons only in the drift region
+ if (drRegion) {
+
+ // Create some special hits with amplitude 0 at the entrance and
+ // exit of each chamber that contain the momentum components of the particle
+ if (gMC->IsTrackEntering() || gMC->IsTrackExiting()) {
+ gMC->TrackMomentum(mom);
+ moms[0] = mom[0];
+ moms[1] = mom[1];
+ moms[2] = mom[2];
+ AddHit(gAlice->CurrentTrack(),det,moms,0,kTRUE);
+ AddHit(gAlice->CurrentTrack(),det,hits,0,kTRUE);
+ }
+
+ // Create the hits from TR photons
+ if (fTR) CreateTRhit(det);
+
+ }
+
+ // Calculate the energy of the delta-electrons
+ eDelta = TMath::Exp(fDeltaE->GetRandom()) - kPoti;
+ eDelta = TMath::Max(eDelta,0.0);
+
+ // The number of secondary electrons created
+ qTot = ((Int_t) (eDelta / kWion) + 1);
+
+ // Create a new dEdx hit
+ if (drRegion) {
+ AddHit(gAlice->CurrentTrack(),det,hits,qTot,kTRUE);
+ }
else {
- pp = kPrim * kPlateau;
- }
-
+ AddHit(gAlice->CurrentTrack(),det,hits,qTot,kFALSE);
+ }
+
// Calculate the maximum step size for the next tracking step
- if (pp > 0) {
- do
- gMC->Rndm(random,1);
- while ((random[0] == 1.) || (random[0] == 0.));
- gMC->SetMaxStep( - TMath::Log(random[0]) / pp);
+ // Produce only one hit if Ekin is below cutoff
+ aMass = gMC->TrackMass();
+ if ((gMC->Etot() - aMass) > kEkinMinStep) {
+
+ // The energy loss according to Bethe Bloch
+ iPdg = TMath::Abs(gMC->TrackPid());
+ if ( (iPdg != kPdgElectron) ||
+ ((iPdg == kPdgElectron) && (pTot < kPTotMaxEl))) {
+ gMC->TrackMomentum(mom);
+ pTot = mom.Rho();
+ betaGamma = pTot / aMass;
+ pp = kPrim * BetheBloch(betaGamma);
+ // Take charge > 1 into account
+ charge = gMC->TrackCharge();
+ if (TMath::Abs(charge) > 1) pp = pp * charge*charge;
+ }
+ // Electrons above 20 Mev/c are at the plateau
+ else {
+ pp = kPrim * kPlateau;
+ }
+
+ if (pp > 0) {
+ do
+ gMC->Rndm(random,1);
+ while ((random[0] == 1.) || (random[0] == 0.));
+ stepSize = - TMath::Log(random[0]) / pp;
+ gMC->SetMaxStep(stepSize);
+ }
+
}
}
- else {
- // set step size to maximal value
- gMC->SetMaxStep(kBig);
- }
}
//const Double_t kP4 = 1.8631;
//const Double_t kP5 = 1.9479;
- if (bg > 0) {
+ // Lower cutoff of the Bethe-Bloch-curve to limit step sizes
+ const Double_t kBgMin = 0.8;
+ const Double_t kBBMax = 6.83298;
+ //const Double_t kBgMin = 0.6;
+ //const Double_t kBBMax = 17.2809;
+ //const Double_t kBgMin = 0.4;
+ //const Double_t kBBMax = 82.0;
+
+ if (bg > kBgMin) {
Double_t yy = bg / TMath::Sqrt(1. + bg*bg);
Double_t aa = TMath::Power(yy,kP4);
Double_t bb = TMath::Power((1./bg),kP5);
bb = TMath::Log(kP3 + bb);
return ((kP2 - aa - bb)*kP1 / aa);
}
- else
- return 0;
+ else {
+ return kBBMax;
+ }
}
Int_t pos1, pos2;
- const Int_t nV = 31;
+ const Int_t kNv = 31;
- Float_t vxe[nV] = { 2.3026, 2.9957, 3.4012, 3.6889, 3.9120
- , 4.0943, 4.2485, 4.3820, 4.4998, 4.6052
- , 4.7005, 5.0752, 5.2983, 5.7038, 5.9915
- , 6.2146, 6.5221, 6.9078, 7.3132, 7.6009
- , 8.0064, 8.5172, 8.6995, 8.9872, 9.2103
- , 9.4727, 9.9035,10.3735,10.5966,10.8198
- ,11.5129 };
+ Float_t vxe[kNv] = { 2.3026, 2.9957, 3.4012, 3.6889, 3.9120
+ , 4.0943, 4.2485, 4.3820, 4.4998, 4.6052
+ , 4.7005, 5.0752, 5.2983, 5.7038, 5.9915
+ , 6.2146, 6.5221, 6.9078, 7.3132, 7.6009
+ , 8.0064, 8.5172, 8.6995, 8.9872, 9.2103
+ , 9.4727, 9.9035,10.3735,10.5966,10.8198
+ ,11.5129 };
- Float_t vye[nV] = { 80.0 , 31.0 , 23.3 , 21.1 , 21.0
- , 20.9 , 20.8 , 20.0 , 16.0 , 11.0
- , 8.0 , 6.0 , 5.2 , 4.6 , 4.0
- , 3.5 , 3.0 , 1.4 , 0.67 , 0.44
- , 0.3 , 0.18 , 0.12 , 0.08 , 0.056
- , 0.04 , 0.023, 0.015, 0.011, 0.01
- , 0.004 };
+ Float_t vye[kNv] = { 80.0 , 31.0 , 23.3 , 21.1 , 21.0
+ , 20.9 , 20.8 , 20.0 , 16.0 , 11.0
+ , 8.0 , 6.0 , 5.2 , 4.6 , 4.0
+ , 3.5 , 3.0 , 1.4 , 0.67 , 0.44
+ , 0.3 , 0.18 , 0.12 , 0.08 , 0.056
+ , 0.04 , 0.023, 0.015, 0.011, 0.01
+ , 0.004 };
energy = x[0];
}
while (dpos > 0);
pos2--;
- if (pos2 > nV) pos2 = nV;
+ if (pos2 > kNv) pos2 = kNv - 1;
pos1 = pos2 - 1;
// Differentiate between the sampling points