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G4ChipsProtonElasticXS Class Reference

#include <G4ChipsProtonElasticXS.hh>

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Public Member Functions

 G4ChipsProtonElasticXS ()
 
 ~G4ChipsProtonElasticXS ()
 
virtual void CrossSectionDescription (std::ostream &) const
 
virtual G4bool IsIsoApplicable (const G4DynamicParticle *Pt, G4int Z, G4int A, const G4Element *elm, const G4Material *mat)
 
virtual G4double GetIsoCrossSection (const G4DynamicParticle *, G4int tgZ, G4int A, const G4Isotope *iso=0, const G4Element *elm=0, const G4Material *mat=0)
 
virtual G4double GetChipsCrossSection (G4double momentum, G4int Z, G4int N, G4int pdg)
 
G4double GetExchangeT (G4int tZ, G4int tN, G4int pPDG)
 
G4double GetHMaxT ()
 
- Public Member Functions inherited from G4VCrossSectionDataSet
 G4VCrossSectionDataSet (const G4String &nam="")
 
virtual ~G4VCrossSectionDataSet ()
 
virtual G4bool IsElementApplicable (const G4DynamicParticle *, G4int Z, const G4Material *mat=0)
 
G4double GetCrossSection (const G4DynamicParticle *, const G4Element *, const G4Material *mat=0)
 
G4double ComputeCrossSection (const G4DynamicParticle *, const G4Element *, const G4Material *mat=0)
 
virtual G4double GetElementCrossSection (const G4DynamicParticle *, G4int Z, const G4Material *mat=0)
 
virtual G4Isotope * SelectIsotope (const G4Element *, G4double kinEnergy)
 
virtual void BuildPhysicsTable (const G4ParticleDefinition &)
 
virtual void DumpPhysicsTable (const G4ParticleDefinition &)
 
virtual G4int GetVerboseLevel () const
 
virtual void SetVerboseLevel (G4int value)
 
G4double GetMinKinEnergy () const
 
void SetMinKinEnergy (G4double value)
 
G4double GetMaxKinEnergy () const
 
void SetMaxKinEnergy (G4double value)
 
const G4String & GetName () const
 

Static Public Member Functions

static const char * Default_Name ()
 

Additional Inherited Members

- Protected Member Functions inherited from G4VCrossSectionDataSet
void SetName (const G4String &)
 
- Protected Attributes inherited from G4VCrossSectionDataSet
G4int verboseLevel
 

Detailed Description

Definition at line 45 of file G4ChipsProtonElasticXS.hh.

Constructor & Destructor Documentation

G4ChipsProtonElasticXS::G4ChipsProtonElasticXS ( )

Definition at line 60 of file G4ChipsProtonElasticXS.cc.

60  :G4VCrossSectionDataSet(Default_Name()), nPoints(128), nLast(nPoints-1)
61 {
62  // Initialization of the parameters
63  lPMin=-8.; // Min tabulated logarithmicMomentum(D)
64  lPMax= 8.; // Max tabulated logarithmicMomentum(D)
65  dlnP=(lPMax-lPMin)/nLast;// LogStep in the table(D)
66  onlyCS=false;// Flag toCalculateOnlyCS(not Si/Bi)(L)
67  lastSIG=0.; // Last calculated cross section (L)
68  lastLP=-10.;// Last log(mom_ofTheIncidentHadron)(L)
69  lastTM=0.; // Last t_maximum (L)
70  theSS=0.; // The Last sq.slope of 1st difr.Max(L)
71  theS1=0.; // The Last mantissa of 1st difr.Max(L)
72  theB1=0.; // The Last slope of 1st difruct.Max(L)
73  theS2=0.; // The Last mantissa of 2nd difr.Max(L)
74  theB2=0.; // The Last slope of 2nd difruct.Max(L)
75  theS3=0.; // The Last mantissa of 3d difr. Max(L)
76  theB3=0.; // The Last slope of 3d difruct. Max(L)
77  theS4=0.; // The Last mantissa of 4th difr.Max(L)
78  theB4=0.; // The Last slope of 4th difruct.Max(L)
79  lastTZ=0; // Last atomic number of the target
80  lastTN=0; // Last # of neutrons in the target
81  lastPIN=0.; // Last initialized max momentum
82  lastCST=0; // Elastic cross-section table
83  lastPAR=0; // Parameters for FunctionalCalculation
84  lastSST=0; // E-dep of sq.slope of the 1st dif.Max
85  lastS1T=0; // E-dep of mantissa of the 1st dif.Max
86  lastB1T=0; // E-dep of the slope of the 1st difMax
87  lastS2T=0; // E-dep of mantissa of the 2nd difrMax
88  lastB2T=0; // E-dep of the slope of the 2nd difMax
89  lastS3T=0; // E-dep of mantissa of the 3d difr.Max
90  lastB3T=0; // E-dep of the slope of the 3d difrMax
91  lastS4T=0; // E-dep of mantissa of the 4th difrMax
92  lastB4T=0; // E-dep of the slope of the 4th difMax
93  lastN=0; // The last N of calculated nucleus
94  lastZ=0; // The last Z of calculated nucleus
95  lastP=0.; // Last used in cross section Momentum
96  lastTH=0.; // Last threshold momentum
97  lastCS=0.; // Last value of the Cross Section
98  lastI=0; // The last position in the DAMDB
99 
100  mProt= G4Proton::Proton()->GetPDGMass()*.001; // MeV to GeV
101  mProt2= mProt*mProt;
102 
103 
104 }
G4VCrossSectionDataSet::G4VCrossSectionDataSet
G4VCrossSectionDataSet(const G4String &nam="")
Definition: G4VCrossSectionDataSet.cc:54
G4Proton::Proton
static G4Proton * Proton()
Definition: G4Proton.cc:93
G4ParticleDefinition::GetPDGMass
G4double GetPDGMass() const
Definition: G4ParticleDefinition.hh:122
G4ChipsProtonElasticXS::Default_Name
static const char * Default_Name()
Definition: G4ChipsProtonElasticXS.hh:53

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G4ChipsProtonElasticXS::~G4ChipsProtonElasticXS ( )

Definition at line 107 of file G4ChipsProtonElasticXS.cc.

108 {
109  std::vector<G4double*>::iterator pos;
110  for (pos=CST.begin(); pos<CST.end(); pos++)
111  { delete [] *pos; }
112  CST.clear();
113  for (pos=PAR.begin(); pos<PAR.end(); pos++)
114  { delete [] *pos; }
115  PAR.clear();
116  for (pos=SST.begin(); pos<SST.end(); pos++)
117  { delete [] *pos; }
118  SST.clear();
119  for (pos=S1T.begin(); pos<S1T.end(); pos++)
120  { delete [] *pos; }
121  S1T.clear();
122  for (pos=B1T.begin(); pos<B1T.end(); pos++)
123  { delete [] *pos; }
124  B1T.clear();
125  for (pos=S2T.begin(); pos<S2T.end(); pos++)
126  { delete [] *pos; }
127  S2T.clear();
128  for (pos=B2T.begin(); pos<B2T.end(); pos++)
129  { delete [] *pos; }
130  B2T.clear();
131  for (pos=S3T.begin(); pos<S3T.end(); pos++)
132  { delete [] *pos; }
133  S3T.clear();
134  for (pos=B3T.begin(); pos<B3T.end(); pos++)
135  { delete [] *pos; }
136  B3T.clear();
137  for (pos=S4T.begin(); pos<S4T.end(); pos++)
138  { delete [] *pos; }
139  S4T.clear();
140  for (pos=B4T.begin(); pos<B4T.end(); pos++)
141  { delete [] *pos; }
142  B4T.clear();
143 
144 }
pos
static const G4double pos
Definition: G4ElectroNuclearCrossSection.cc:66

Member Function Documentation

void G4ChipsProtonElasticXS::CrossSectionDescription ( std::ostream &  outFile) const
virtual

Reimplemented from G4VCrossSectionDataSet.

Definition at line 147 of file G4ChipsProtonElasticXS.cc.

148 {
149  outFile << "G4ChipsProtonElasticXS provides the elastic cross\n"
150  << "section for proton nucleus scattering as a function of incident\n"
151  << "momentum. The cross section is calculated using M. Kossov's\n"
152  << "CHIPS parameterization of cross section data.\n";
153 }
static const char* G4ChipsProtonElasticXS::Default_Name ( )
inlinestatic

Definition at line 53 of file G4ChipsProtonElasticXS.hh.

53 {return "ChipsProtonElasticXS";}

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G4double G4ChipsProtonElasticXS::GetChipsCrossSection ( G4double  momentum,
G4int  Z,
G4int  N,
G4int  pdg 
)
virtual

!The slave functions must provide cross-sections in millibarns (mb) !! (not in IU)

Definition at line 177 of file G4ChipsProtonElasticXS.cc.

178 {
179 
180  G4double pEn=pMom;
181  onlyCS=false;
182 
183  G4bool in=false; // By default the isotope must be found in the AMDB
184  lastP = 0.; // New momentum history (nothing to compare with)
185  lastN = tgN; // The last N of the calculated nucleus
186  lastZ = tgZ; // The last Z of the calculated nucleus
187  lastI = colN.size(); // Size of the Associative Memory DB in the heap
188  if(lastI) for(G4int i=0; i<lastI; i++) // Loop over proj/tgZ/tgN lines of DB
189  { // The nucleus with projPDG is found in AMDB
190  if(colN[i]==tgN && colZ[i]==tgZ) // Isotope is foind in AMDB
191  {
192  lastI=i;
193  lastTH =colTH[i]; // Last THreshold (A-dependent)
194  if(pEn<=lastTH)
195  {
196  return 0.; // Energy is below the Threshold value
197  }
198  lastP =colP [i]; // Last Momentum (A-dependent)
199  lastCS =colCS[i]; // Last CrossSect (A-dependent)
200  if(lastP == pMom) // Do not recalculate
201  {
202  CalculateCrossSection(onlyCS,-1,i,2212,lastZ,lastN,pMom); // Update param's only
203  return lastCS*millibarn; // Use theLastCS
204  }
205  in = true; // This is the case when the isotop is found in DB
206  // Momentum pMom is in IU ! @@ Units
207  lastCS=CalculateCrossSection(onlyCS,-1,i,2212,lastZ,lastN,pMom); // read & update
208  if(lastCS<=0. && pEn>lastTH) // Correct the threshold
209  {
210  lastTH=pEn;
211  }
212  break; // Go out of the LOOP with found lastI
213  }
214  } // End of attampt to find the nucleus in DB
215  if(!in) // This nucleus has not been calculated previously
216  {
218  lastCS=CalculateCrossSection(onlyCS,0,lastI,2212,lastZ,lastN,pMom);//calculate&create
219  if(lastCS<=0.)
220  {
221  lastTH = 0; //ThresholdEnergy(tgZ, tgN); // The Threshold Energy which is now the last
222  if(pEn>lastTH)
223  {
224  lastTH=pEn;
225  }
226  }
227  colN.push_back(tgN);
228  colZ.push_back(tgZ);
229  colP.push_back(pMom);
230  colTH.push_back(lastTH);
231  colCS.push_back(lastCS);
232  return lastCS*millibarn;
233  } // End of creation of the new set of parameters
234  else
235  {
236  colP[lastI]=pMom;
237  colCS[lastI]=lastCS;
238  }
239  return lastCS*millibarn;
240 }
G4int
int G4int
Definition: G4Types.hh:78
G4bool
bool G4bool
Definition: G4Types.hh:79
G4double
double G4double
Definition: G4Types.hh:76
millibarn
static constexpr double millibarn
Definition: G4SIunits.hh:106

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G4double G4ChipsProtonElasticXS::GetExchangeT ( G4int  tZ,
G4int  tN,
G4int  pPDG 
)

Definition at line 622 of file G4ChipsProtonElasticXS.cc.

623 {
624  static const G4double GeVSQ=gigaelectronvolt*gigaelectronvolt;
625  static const G4double third=1./3.;
626  static const G4double fifth=1./5.;
627  static const G4double sevth=1./7.;
628  if(PDG!=2212) G4cout<<"**Warning*G4ChipsProtonElasticXS::GetExT:PDG="<<PDG<<G4endl;
629  if(onlyCS) G4cout<<"**Warning*G4ChipsProtonElasticXS::GetExchanT:onlyCS=1"<<G4endl;
630  if(lastLP<-4.3) return lastTM*GeVSQ*G4UniformRand();// S-wave for p<14 MeV/c (kinE<.1MeV)
631  G4double q2=0.;
632  if(tgZ==1 && tgN==0) // ===> p+p=p+p
633  {
634  G4double E1=lastTM*theB1;
635  G4double R1=(1.-std::exp(-E1));
636  G4double E2=lastTM*theB2;
637  G4double R2=(1.-std::exp(-E2*E2*E2));
638  G4double E3=lastTM*theB3;
639  G4double R3=(1.-std::exp(-E3));
640  G4double I1=R1*theS1/theB1;
641  G4double I2=R2*theS2;
642  G4double I3=R3*theS3;
643  G4double I12=I1+I2;
644  G4double rand=(I12+I3)*G4UniformRand();
645  if (rand<I1 )
646  {
647  G4double ran=R1*G4UniformRand();
648  if(ran>1.) ran=1.;
649  q2=-std::log(1.-ran)/theB1;
650  }
651  else if(rand<I12)
652  {
653  G4double ran=R2*G4UniformRand();
654  if(ran>1.) ran=1.;
655  q2=-std::log(1.-ran);
656  if(q2<0.) q2=0.;
657  q2=std::pow(q2,third)/theB2;
658  }
659  else
660  {
661  G4double ran=R3*G4UniformRand();
662  if(ran>1.) ran=1.;
663  q2=-std::log(1.-ran)/theB3;
664  }
665  }
666  else
667  {
668  G4double a=tgZ+tgN;
669  G4double E1=lastTM*(theB1+lastTM*theSS);
670  G4double R1=(1.-std::exp(-E1));
671  G4double tss=theSS+theSS; // for future solution of quadratic equation (imediate check)
672  G4double tm2=lastTM*lastTM;
673  G4double E2=lastTM*tm2*theB2; // power 3 for lowA, 5 for HighA (1st)
674  if(a>6.5)E2*=tm2; // for heavy nuclei
675  G4double R2=(1.-std::exp(-E2));
676  G4double E3=lastTM*theB3;
677  if(a>6.5)E3*=tm2*tm2*tm2; // power 1 for lowA, 7 (2nd) for HighA
678  G4double R3=(1.-std::exp(-E3));
679  G4double E4=lastTM*theB4;
680  G4double R4=(1.-std::exp(-E4));
681  G4double I1=R1*theS1;
682  G4double I2=R2*theS2;
683  G4double I3=R3*theS3;
684  G4double I4=R4*theS4;
685  G4double I12=I1+I2;
686  G4double I13=I12+I3;
687  G4double rand=(I13+I4)*G4UniformRand();
688  if(rand<I1)
689  {
690  G4double ran=R1*G4UniformRand();
691  if(ran>1.) ran=1.;
692  q2=-std::log(1.-ran)/theB1;
693  if(std::fabs(tss)>1.e-7) q2=(std::sqrt(theB1*(theB1+(tss+tss)*q2))-theB1)/tss;
694  }
695  else if(rand<I12)
696  {
697  G4double ran=R2*G4UniformRand();
698  if(ran>1.) ran=1.;
699  q2=-std::log(1.-ran)/theB2;
700  if(q2<0.) q2=0.;
701  if(a<6.5) q2=std::pow(q2,third);
702  else q2=std::pow(q2,fifth);
703  }
704  else if(rand<I13)
705  {
706  G4double ran=R3*G4UniformRand();
707  if(ran>1.) ran=1.;
708  q2=-std::log(1.-ran)/theB3;
709  if(q2<0.) q2=0.;
710  if(a>6.5) q2=std::pow(q2,sevth);
711  }
712  else
713  {
714  G4double ran=R4*G4UniformRand();
715  if(ran>1.) ran=1.;
716  q2=-std::log(1.-ran)/theB4;
717  if(a<6.5) q2=lastTM-q2; // u reduced for lightA (starts from 0)
718  }
719  }
720  if(q2<0.) q2=0.;
721  if(!(q2>=-1.||q2<=1.)) G4cout<<"*NAN*G4QElasticCrossSect::GetExchangeT: -t="<<q2<<G4endl;
722  if(q2>lastTM)
723  {
724  q2=lastTM;
725  }
726  return q2*GeVSQ;
727 }
a
std::vector< ExP01TrackerHit * > a
Definition: ExP01Classes.hh:33
G4UniformRand
#define G4UniformRand()
Definition: Randomize.hh:97
G4cout
G4GLOB_DLL std::ostream G4cout
gigaelectronvolt
static constexpr double gigaelectronvolt
Definition: G4SIunits.hh:209
G4endl
#define G4endl
Definition: G4ios.hh:61
G4double
double G4double
Definition: G4Types.hh:76

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G4double G4ChipsProtonElasticXS::GetHMaxT ( )

Definition at line 752 of file G4ChipsProtonElasticXS.cc.

753 {
754  static const G4double HGeVSQ=gigaelectronvolt*gigaelectronvolt/2.;
755  return lastTM*HGeVSQ;
756 }
gigaelectronvolt
static constexpr double gigaelectronvolt
Definition: G4SIunits.hh:209
G4double
double G4double
Definition: G4Types.hh:76

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G4double G4ChipsProtonElasticXS::GetIsoCrossSection ( const G4DynamicParticle *  Pt,
G4int  tgZ,
G4int  A,
const G4Isotope *  iso = 0,
const G4Element *  elm = 0,
const G4Material *  mat = 0 
)
virtual

Reimplemented from G4VCrossSectionDataSet.

Definition at line 163 of file G4ChipsProtonElasticXS.cc.

167 {
168  G4double pMom=Pt->GetTotalMomentum();
169  G4int tgN = A - tgZ;
170 
171  return GetChipsCrossSection(pMom, tgZ, tgN, 2212);
172 }
G4int
int G4int
Definition: G4Types.hh:78
G4DynamicParticle::GetTotalMomentum
G4double GetTotalMomentum() const
A
double A(double temperature)
Definition: G4DNAElectronHoleRecombination.cc:60
G4double
double G4double
Definition: G4Types.hh:76
G4ChipsProtonElasticXS::GetChipsCrossSection
virtual G4double GetChipsCrossSection(G4double momentum, G4int Z, G4int N, G4int pdg)
Definition: G4ChipsProtonElasticXS.cc:177

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G4bool G4ChipsProtonElasticXS::IsIsoApplicable ( const G4DynamicParticle *  Pt,
G4int  Z,
G4int  A,
const G4Element *  elm,
const G4Material *  mat 
)
virtual

Reimplemented from G4VCrossSectionDataSet.

Definition at line 155 of file G4ChipsProtonElasticXS.cc.

158 {
159  return true;
160 }
The documentation for this class was generated from the following files: