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Public Member Functions | Static Public Member Functions
G4ChipsProtonElasticXS Class Reference

#include <G4ChipsProtonElasticXS.hh>

Inheritance diagram for G4ChipsProtonElasticXS:
G4VCrossSectionDataSet

Public Member Functions

 G4ChipsProtonElasticXS ()
 
 ~G4ChipsProtonElasticXS ()
 
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 void CrossSectionDescription (std::ostream &) const
 
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 56 of file G4ChipsProtonElasticXS.cc.

56  :G4VCrossSectionDataSet(Default_Name()), nPoints(128), nLast(nPoints-1)
57 {
58  // Initialization of the parameters
59  lPMin=-8.; // Min tabulated logarithmicMomentum(D)
60  lPMax= 8.; // Max tabulated logarithmicMomentum(D)
61  dlnP=(lPMax-lPMin)/nLast;// LogStep in the table(D)
62  onlyCS=false;// Flag toCalculateOnlyCS(not Si/Bi)(L)
63  lastSIG=0.; // Last calculated cross section (L)
64  lastLP=-10.;// Last log(mom_ofTheIncidentHadron)(L)
65  lastTM=0.; // Last t_maximum (L)
66  theSS=0.; // The Last sq.slope of 1st difr.Max(L)
67  theS1=0.; // The Last mantissa of 1st difr.Max(L)
68  theB1=0.; // The Last slope of 1st difruct.Max(L)
69  theS2=0.; // The Last mantissa of 2nd difr.Max(L)
70  theB2=0.; // The Last slope of 2nd difruct.Max(L)
71  theS3=0.; // The Last mantissa of 3d difr. Max(L)
72  theB3=0.; // The Last slope of 3d difruct. Max(L)
73  theS4=0.; // The Last mantissa of 4th difr.Max(L)
74  theB4=0.; // The Last slope of 4th difruct.Max(L)
75  lastTZ=0; // Last atomic number of the target
76  lastTN=0; // Last # of neutrons in the target
77  lastPIN=0.; // Last initialized max momentum
78  lastCST=0; // Elastic cross-section table
79  lastPAR=0; // Parameters for FunctionalCalculation
80  lastSST=0; // E-dep of sq.slope of the 1st dif.Max
81  lastS1T=0; // E-dep of mantissa of the 1st dif.Max
82  lastB1T=0; // E-dep of the slope of the 1st difMax
83  lastS2T=0; // E-dep of mantissa of the 2nd difrMax
84  lastB2T=0; // E-dep of the slope of the 2nd difMax
85  lastS3T=0; // E-dep of mantissa of the 3d difr.Max
86  lastB3T=0; // E-dep of the slope of the 3d difrMax
87  lastS4T=0; // E-dep of mantissa of the 4th difrMax
88  lastB4T=0; // E-dep of the slope of the 4th difMax
89  lastN=0; // The last N of calculated nucleus
90  lastZ=0; // The last Z of calculated nucleus
91  lastP=0.; // Last used in cross section Momentum
92  lastTH=0.; // Last threshold momentum
93  lastCS=0.; // Last value of the Cross Section
94  lastI=0; // The last position in the DAMDB
95 }
G4VCrossSectionDataSet::G4VCrossSectionDataSet
G4VCrossSectionDataSet(const G4String &nam="")
Definition: G4VCrossSectionDataSet.cc:54
G4ChipsProtonElasticXS::Default_Name
static const char * Default_Name()
Definition: G4ChipsProtonElasticXS.hh:53
G4ChipsProtonElasticXS::~G4ChipsProtonElasticXS ( )

Definition at line 98 of file G4ChipsProtonElasticXS.cc.

99 {
100  std::vector<G4double*>::iterator pos;
101  for (pos=CST.begin(); pos<CST.end(); pos++)
102  { delete [] *pos; }
103  CST.clear();
104  for (pos=PAR.begin(); pos<PAR.end(); pos++)
105  { delete [] *pos; }
106  PAR.clear();
107  for (pos=SST.begin(); pos<SST.end(); pos++)
108  { delete [] *pos; }
109  SST.clear();
110  for (pos=S1T.begin(); pos<S1T.end(); pos++)
111  { delete [] *pos; }
112  S1T.clear();
113  for (pos=B1T.begin(); pos<B1T.end(); pos++)
114  { delete [] *pos; }
115  B1T.clear();
116  for (pos=S2T.begin(); pos<S2T.end(); pos++)
117  { delete [] *pos; }
118  S2T.clear();
119  for (pos=B2T.begin(); pos<B2T.end(); pos++)
120  { delete [] *pos; }
121  B2T.clear();
122  for (pos=S3T.begin(); pos<S3T.end(); pos++)
123  { delete [] *pos; }
124  S3T.clear();
125  for (pos=B3T.begin(); pos<B3T.end(); pos++)
126  { delete [] *pos; }
127  B3T.clear();
128  for (pos=S4T.begin(); pos<S4T.end(); pos++)
129  { delete [] *pos; }
130  S4T.clear();
131  for (pos=B4T.begin(); pos<B4T.end(); pos++)
132  { delete [] *pos; }
133  B4T.clear();
134 
135 }

Member Function Documentation

static const char* G4ChipsProtonElasticXS::Default_Name ( )
inlinestatic

Definition at line 53 of file G4ChipsProtonElasticXS.hh.

Referenced by DMXPhysicsList::ConstructHad(), G4HadronElasticPhysics::ConstructProcess(), G4ChipsComponentXS::G4ChipsComponentXS(), G4ChipsElasticModel::G4ChipsElasticModel(), and G4QuasiElRatios::G4QuasiElRatios().

53 {return "ChipsProtonElasticXS";}
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 161 of file G4ChipsProtonElasticXS.cc.

References G4ThreadLocal, and python.hepunit::millibarn.

Referenced by G4QuasiElRatios::ChExer(), GetIsoCrossSection(), G4ChipsElasticModel::SampleInvariantT(), and G4QuasiElRatios::Scatter().

162 {
163  static G4ThreadLocal std::vector <G4int> *colN_G4MT_TLS_ = 0 ; if (!colN_G4MT_TLS_) colN_G4MT_TLS_ = new std::vector <G4int> ; std::vector <G4int> &colN = *colN_G4MT_TLS_; // Vector of N for calculated nuclei (isotops)
164  static G4ThreadLocal std::vector <G4int> *colZ_G4MT_TLS_ = 0 ; if (!colZ_G4MT_TLS_) colZ_G4MT_TLS_ = new std::vector <G4int> ; std::vector <G4int> &colZ = *colZ_G4MT_TLS_; // Vector of Z for calculated nuclei (isotops)
165  static G4ThreadLocal std::vector <G4double> *colP_G4MT_TLS_ = 0 ; if (!colP_G4MT_TLS_) colP_G4MT_TLS_ = new std::vector <G4double> ; std::vector <G4double> &colP = *colP_G4MT_TLS_; // Vector of last momenta for the reaction
166  static G4ThreadLocal std::vector <G4double> *colTH_G4MT_TLS_ = 0 ; if (!colTH_G4MT_TLS_) colTH_G4MT_TLS_ = new std::vector <G4double> ; std::vector <G4double> &colTH = *colTH_G4MT_TLS_; // Vector of energy thresholds for the reaction
167  static G4ThreadLocal std::vector <G4double> *colCS_G4MT_TLS_ = 0 ; if (!colCS_G4MT_TLS_) colCS_G4MT_TLS_ = new std::vector <G4double> ; std::vector <G4double> &colCS = *colCS_G4MT_TLS_; // Vector of last cross sections for the reaction
168  // ***---*** End of the mandatory Static Definitions of the Associative Memory ***---***
169 
170  G4double pEn=pMom;
171  onlyCS=false;
172 
173  G4bool in=false; // By default the isotope must be found in the AMDB
174  lastP = 0.; // New momentum history (nothing to compare with)
175  lastN = tgN; // The last N of the calculated nucleus
176  lastZ = tgZ; // The last Z of the calculated nucleus
177  lastI = colN.size(); // Size of the Associative Memory DB in the heap
178  if(lastI) for(G4int i=0; i<lastI; i++) // Loop over proj/tgZ/tgN lines of DB
179  { // The nucleus with projPDG is found in AMDB
180  if(colN[i]==tgN && colZ[i]==tgZ) // Isotope is foind in AMDB
181  {
182  lastI=i;
183  lastTH =colTH[i]; // Last THreshold (A-dependent)
184  if(pEn<=lastTH)
185  {
186  return 0.; // Energy is below the Threshold value
187  }
188  lastP =colP [i]; // Last Momentum (A-dependent)
189  lastCS =colCS[i]; // Last CrossSect (A-dependent)
190  if(lastP == pMom) // Do not recalculate
191  {
192  CalculateCrossSection(onlyCS,-1,i,2212,lastZ,lastN,pMom); // Update param's only
193  return lastCS*millibarn; // Use theLastCS
194  }
195  in = true; // This is the case when the isotop is found in DB
196  // Momentum pMom is in IU ! @@ Units
197  lastCS=CalculateCrossSection(onlyCS,-1,i,2212,lastZ,lastN,pMom); // read & update
198  if(lastCS<=0. && pEn>lastTH) // Correct the threshold
199  {
200  lastTH=pEn;
201  }
202  break; // Go out of the LOOP with found lastI
203  }
204  } // End of attampt to find the nucleus in DB
205  if(!in) // This nucleus has not been calculated previously
206  {
207  //!!The slave functions must provide cross-sections in millibarns (mb) !! (not in IU)
208  lastCS=CalculateCrossSection(onlyCS,0,lastI,2212,lastZ,lastN,pMom);//calculate&create
209  if(lastCS<=0.)
210  {
211  lastTH = 0; //ThresholdEnergy(tgZ, tgN); // The Threshold Energy which is now the last
212  if(pEn>lastTH)
213  {
214  lastTH=pEn;
215  }
216  }
217  colN.push_back(tgN);
218  colZ.push_back(tgZ);
219  colP.push_back(pMom);
220  colTH.push_back(lastTH);
221  colCS.push_back(lastCS);
222  return lastCS*millibarn;
223  } // End of creation of the new set of parameters
224  else
225  {
226  colP[lastI]=pMom;
227  colCS[lastI]=lastCS;
228  }
229  return lastCS*millibarn;
230 }
G4ThreadLocal
#define G4ThreadLocal
Definition: tls.hh:52
G4int
int G4int
Definition: G4Types.hh:78
python.hepunit.millibarn
int millibarn
Definition: hepunit.py:40
G4bool
bool G4bool
Definition: G4Types.hh:79
G4double
double G4double
Definition: G4Types.hh:76
G4double G4ChipsProtonElasticXS::GetExchangeT ( G4int  tZ,
G4int  tN,
G4int  pPDG 
)

Definition at line 615 of file G4ChipsProtonElasticXS.cc.

References G4cout, G4endl, G4UniformRand, and python.hepunit::gigaelectronvolt.

Referenced by G4QuasiElRatios::ChExer(), G4ChipsElasticModel::SampleInvariantT(), and G4QuasiElRatios::Scatter().

616 {
617  static const G4double GeVSQ=gigaelectronvolt*gigaelectronvolt;
618  static const G4double third=1./3.;
619  static const G4double fifth=1./5.;
620  static const G4double sevth=1./7.;
621  if(PDG!=2212) G4cout<<"**Warning*G4ChipsProtonElasticXS::GetExT:PDG="<<PDG<<G4endl;
622  if(onlyCS) G4cout<<"**Warning*G4ChipsProtonElasticXS::GetExchanT:onlyCS=1"<<G4endl;
623  if(lastLP<-4.3) return lastTM*GeVSQ*G4UniformRand();// S-wave for p<14 MeV/c (kinE<.1MeV)
624  G4double q2=0.;
625  if(tgZ==1 && tgN==0) // ===> p+p=p+p
626  {
627  G4double E1=lastTM*theB1;
628  G4double R1=(1.-std::exp(-E1));
629  G4double E2=lastTM*theB2;
630  G4double R2=(1.-std::exp(-E2*E2*E2));
631  G4double E3=lastTM*theB3;
632  G4double R3=(1.-std::exp(-E3));
633  G4double I1=R1*theS1/theB1;
634  G4double I2=R2*theS2;
635  G4double I3=R3*theS3;
636  G4double I12=I1+I2;
637  G4double rand=(I12+I3)*G4UniformRand();
638  if (rand<I1 )
639  {
640  G4double ran=R1*G4UniformRand();
641  if(ran>1.) ran=1.;
642  q2=-std::log(1.-ran)/theB1;
643  }
644  else if(rand<I12)
645  {
646  G4double ran=R2*G4UniformRand();
647  if(ran>1.) ran=1.;
648  q2=-std::log(1.-ran);
649  if(q2<0.) q2=0.;
650  q2=std::pow(q2,third)/theB2;
651  }
652  else
653  {
654  G4double ran=R3*G4UniformRand();
655  if(ran>1.) ran=1.;
656  q2=-std::log(1.-ran)/theB3;
657  }
658  }
659  else
660  {
661  G4double a=tgZ+tgN;
662  G4double E1=lastTM*(theB1+lastTM*theSS);
663  G4double R1=(1.-std::exp(-E1));
664  G4double tss=theSS+theSS; // for future solution of quadratic equation (imediate check)
665  G4double tm2=lastTM*lastTM;
666  G4double E2=lastTM*tm2*theB2; // power 3 for lowA, 5 for HighA (1st)
667  if(a>6.5)E2*=tm2; // for heavy nuclei
668  G4double R2=(1.-std::exp(-E2));
669  G4double E3=lastTM*theB3;
670  if(a>6.5)E3*=tm2*tm2*tm2; // power 1 for lowA, 7 (2nd) for HighA
671  G4double R3=(1.-std::exp(-E3));
672  G4double E4=lastTM*theB4;
673  G4double R4=(1.-std::exp(-E4));
674  G4double I1=R1*theS1;
675  G4double I2=R2*theS2;
676  G4double I3=R3*theS3;
677  G4double I4=R4*theS4;
678  G4double I12=I1+I2;
679  G4double I13=I12+I3;
680  G4double rand=(I13+I4)*G4UniformRand();
681  if(rand<I1)
682  {
683  G4double ran=R1*G4UniformRand();
684  if(ran>1.) ran=1.;
685  q2=-std::log(1.-ran)/theB1;
686  if(std::fabs(tss)>1.e-7) q2=(std::sqrt(theB1*(theB1+(tss+tss)*q2))-theB1)/tss;
687  }
688  else if(rand<I12)
689  {
690  G4double ran=R2*G4UniformRand();
691  if(ran>1.) ran=1.;
692  q2=-std::log(1.-ran)/theB2;
693  if(q2<0.) q2=0.;
694  if(a<6.5) q2=std::pow(q2,third);
695  else q2=std::pow(q2,fifth);
696  }
697  else if(rand<I13)
698  {
699  G4double ran=R3*G4UniformRand();
700  if(ran>1.) ran=1.;
701  q2=-std::log(1.-ran)/theB3;
702  if(q2<0.) q2=0.;
703  if(a>6.5) q2=std::pow(q2,sevth);
704  }
705  else
706  {
707  G4double ran=R4*G4UniformRand();
708  if(ran>1.) ran=1.;
709  q2=-std::log(1.-ran)/theB4;
710  if(a<6.5) q2=lastTM-q2; // u reduced for lightA (starts from 0)
711  }
712  }
713  if(q2<0.) q2=0.;
714  if(!(q2>=-1.||q2<=1.)) G4cout<<"*NAN*G4QElasticCrossSect::GetExchangeT: -t="<<q2<<G4endl;
715  if(q2>lastTM)
716  {
717  q2=lastTM;
718  }
719  return q2*GeVSQ;
720 }
python.hepunit.gigaelectronvolt
int gigaelectronvolt
Definition: hepunit.py:110
G4UniformRand
#define G4UniformRand()
Definition: Randomize.hh:87
G4cout
G4GLOB_DLL std::ostream G4cout
G4endl
#define G4endl
Definition: G4ios.hh:61
G4double
double G4double
Definition: G4Types.hh:76
G4double G4ChipsProtonElasticXS::GetHMaxT ( )

Definition at line 745 of file G4ChipsProtonElasticXS.cc.

Referenced by G4QuasiElRatios::ChExer(), and G4QuasiElRatios::Scatter().

746 {
747  static const G4double HGeVSQ=gigaelectronvolt*gigaelectronvolt/2.;
748  return lastTM*HGeVSQ;
749 }
python.hepunit.gigaelectronvolt
int gigaelectronvolt
Definition: hepunit.py:110
G4double
double G4double
Definition: G4Types.hh:76
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 147 of file G4ChipsProtonElasticXS.cc.

References GetChipsCrossSection(), and G4DynamicParticle::GetTotalMomentum().

151 {
152  G4double pMom=Pt->GetTotalMomentum();
153  G4int tgN = A - tgZ;
154 
155  return GetChipsCrossSection(pMom, tgZ, tgN, 2212);
156 }
G4int
int G4int
Definition: G4Types.hh:78
G4DynamicParticle::GetTotalMomentum
G4double GetTotalMomentum() const
G4double
double G4double
Definition: G4Types.hh:76
G4ChipsProtonElasticXS::GetChipsCrossSection
virtual G4double GetChipsCrossSection(G4double momentum, G4int Z, G4int N, G4int pdg)
Definition: G4ChipsProtonElasticXS.cc:161
G4bool G4ChipsProtonElasticXS::IsIsoApplicable ( const G4DynamicParticle *  Pt,
G4int  Z,
G4int  A,
const G4Element *  elm,
const G4Material *  mat 
)
virtual

Reimplemented from G4VCrossSectionDataSet.

Definition at line 137 of file G4ChipsProtonElasticXS.cc.

References G4DynamicParticle::GetDefinition(), and G4Proton::Proton().

140 {
141  G4ParticleDefinition* particle = Pt->GetDefinition();
142  if (particle == G4Proton::Proton() ) return true;
143  return false;
144 }
G4DynamicParticle::GetDefinition
G4ParticleDefinition * GetDefinition() const
G4Proton::Proton
static G4Proton * Proton()
Definition: G4Proton.cc:93
The documentation for this class was generated from the following files:
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