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Public Member Functions | Static Public Member Functions
G4ChipsPionMinusElasticXS Class Reference

#include <G4ChipsPionMinusElasticXS.hh>

Inheritance diagram for G4ChipsPionMinusElasticXS:
G4VCrossSectionDataSet

Public Member Functions

 G4ChipsPionMinusElasticXS ()
 
 ~G4ChipsPionMinusElasticXS ()
 
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)
 
- 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 47 of file G4ChipsPionMinusElasticXS.hh.

Constructor & Destructor Documentation

G4ChipsPionMinusElasticXS::G4ChipsPionMinusElasticXS ( )

Definition at line 55 of file G4ChipsPionMinusElasticXS.cc.

55  :G4VCrossSectionDataSet(Default_Name()), nPoints(128), nLast(nPoints-1)
56 {
57  lPMin=-8.; //Min tabulated logarithmMomentum(D)
58  lPMax= 8.; //Max tabulated logarithmMomentum(D)
59  dlnP=(lPMax-lPMin)/nLast;//LogStep inTheTable(D)
60  onlyCS=true;//Flag toCalcul OnlyCS(not Si/Bi)(L)
61  lastSIG=0.; //Last calculated cross section (L)
62  lastLP=-10.;//Last log(mom_of IncidentHadron)(L)
63  lastTM=0.; //Last t_maximum (L)
64  theSS=0.; //TheLastSqSlope of 1st difr.Max(L)
65  theS1=0.; //TheLastMantissa of 1st difr.Max(L)
66  theB1=0.; //TheLastSlope of 1st difruct.Max(L)
67  theS2=0.; //TheLastMantissa of 2nd difr.Max(L)
68  theB2=0.; //TheLastSlope of 2nd difruct.Max(L)
69  theS3=0.; //TheLastMantissa of 3d difr. Max(L)
70  theB3=0.; //TheLastSlope of 3d difruct. Max(L)
71  theS4=0.; //TheLastMantissa of 4th difr.Max(L)
72  theB4=0.; //TheLastSlope of 4th difruct.Max(L)
73  lastTZ=0; // Last atomic number of the target
74  lastTN=0; // Last # of neutrons in the target
75  lastPIN=0.; // Last initialized max momentum
76  lastCST=0; // Elastic cross-section table
77  lastPAR=0; // Parameters ForFunctionCalculation
78  lastSST=0; // E-dep of SqardSlope of 1st difMax
79  lastS1T=0; // E-dep of mantissa of 1st dif.Max
80  lastB1T=0; // E-dep of the slope of 1st difMax
81  lastS2T=0; // E-dep of mantissa of 2nd difrMax
82  lastB2T=0; // E-dep of the slope of 2nd difMax
83  lastS3T=0; // E-dep of mantissa of 3d difr.Max
84  lastB3T=0; // E-dep of the slope of 3d difrMax
85  lastS4T=0; // E-dep of mantissa of 4th difrMax
86  lastB4T=0; // E-dep of the slope of 4th difMax
87  lastN=0; // The last N of calculated nucleus
88  lastZ=0; // The last Z of calculated nucleus
89  lastP=0.; // LastUsed in CrossSection Momentum
90  lastTH=0.; // Last threshold momentum
91  lastCS=0.; // Last value of the Cross Section
92  lastI=0; // The last position in the DAMDB
93 }
G4VCrossSectionDataSet::G4VCrossSectionDataSet
G4VCrossSectionDataSet(const G4String &nam="")
Definition: G4VCrossSectionDataSet.cc:54
G4ChipsPionMinusElasticXS::~G4ChipsPionMinusElasticXS ( )

Definition at line 95 of file G4ChipsPionMinusElasticXS.cc.

96 {
97  std::vector<G4double*>::iterator pos;
98  for (pos=CST.begin(); pos<CST.end(); pos++)
99  { delete [] *pos; }
100  CST.clear();
101  for (pos=PAR.begin(); pos<PAR.end(); pos++)
102  { delete [] *pos; }
103  PAR.clear();
104  for (pos=SST.begin(); pos<SST.end(); pos++)
105  { delete [] *pos; }
106  SST.clear();
107  for (pos=S1T.begin(); pos<S1T.end(); pos++)
108  { delete [] *pos; }
109  S1T.clear();
110  for (pos=B1T.begin(); pos<B1T.end(); pos++)
111  { delete [] *pos; }
112  B1T.clear();
113  for (pos=S2T.begin(); pos<S2T.end(); pos++)
114  { delete [] *pos; }
115  S2T.clear();
116  for (pos=B2T.begin(); pos<B2T.end(); pos++)
117  { delete [] *pos; }
118  B2T.clear();
119  for (pos=S3T.begin(); pos<S3T.end(); pos++)
120  { delete [] *pos; }
121  S3T.clear();
122  for (pos=B3T.begin(); pos<B3T.end(); pos++)
123  { delete [] *pos; }
124  B3T.clear();
125  for (pos=S4T.begin(); pos<S4T.end(); pos++)
126  { delete [] *pos; }
127  S4T.clear();
128  for (pos=B4T.begin(); pos<B4T.end(); pos++)
129  { delete [] *pos; }
130  B4T.clear();
131 }

Member Function Documentation

static const char* G4ChipsPionMinusElasticXS::Default_Name ( )
inlinestatic

Definition at line 55 of file G4ChipsPionMinusElasticXS.hh.

Referenced by G4ChipsComponentXS::G4ChipsComponentXS(), and G4ChipsElasticModel::G4ChipsElasticModel().

55 {return "ChipsPionMinusElasticXS";}
G4double G4ChipsPionMinusElasticXS::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 156 of file G4ChipsPionMinusElasticXS.cc.

References G4ThreadLocal, and python.hepunit::millibarn.

Referenced by GetIsoCrossSection(), and G4ChipsElasticModel::SampleInvariantT().

157 {
158  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)
159  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)
160  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
161  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
162  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
163  // ***---*** End of the mandatory Static Definitions of the Associative Memory ***---***
164 
165  G4double pEn=pMom;
166  G4bool fCS = false;
167  onlyCS=fCS;
168 
169  G4bool in=false; // By default the isotope must be found in the AMDB
170  lastP = 0.; // New momentum history (nothing to compare with)
171  lastN = tgN; // The last N of the calculated nucleus
172  lastZ = tgZ; // The last Z of the calculated nucleus
173  lastI = colN.size(); // Size of the Associative Memory DB in the heap
174  if(lastI) for(G4int i=0; i<lastI; i++) // Loop over proj/tgZ/tgN lines of DB
175  { // The nucleus with projPDG is found in AMDB
176  if(colN[i]==tgN && colZ[i]==tgZ) // Isotope is foind in AMDB
177  {
178  lastI=i;
179  lastTH =colTH[i]; // Last THreshold (A-dependent)
180  if(pEn<=lastTH)
181  {
182  return 0.; // Energy is below the Threshold value
183  }
184  lastP =colP [i]; // Last Momentum (A-dependent)
185  lastCS =colCS[i]; // Last CrossSect (A-dependent)
186  // if(std::fabs(lastP/pMom-1.)<tolerance) //VI (do not use tolerance)
187  if(lastP == pMom) // Do not recalculate
188  {
189  CalculateCrossSection(fCS,-1,i,-211,lastZ,lastN,pMom); // Update param's only
190  return lastCS*millibarn; // Use theLastCS
191  }
192  in = true; // This is the case when the isotop is found in DB
193  // Momentum pMom is in IU ! @@ Units
194  lastCS=CalculateCrossSection(fCS,-1,i,-211,lastZ,lastN,pMom); // read & update
195  if(lastCS<=0. && pEn>lastTH) // Correct the threshold
196  {
197  lastTH=pEn;
198  }
199  break; // Go out of the LOOP with found lastI
200  }
201  } // End of attampt to find the nucleus in DB
202  if(!in) // This nucleus has not been calculated previously
203  {
204  //!!The slave functions must provide cross-sections in millibarns (mb) !! (not in IU)
205  lastCS=CalculateCrossSection(fCS,0,lastI,-211,lastZ,lastN,pMom);//calculate&create
206  if(lastCS<=0.)
207  {
208  lastTH = 0; //ThresholdEnergy(tgZ, tgN); // The Threshold Energy which is now the last
209  if(pEn>lastTH)
210  {
211  lastTH=pEn;
212  }
213  }
214  colN.push_back(tgN);
215  colZ.push_back(tgZ);
216  colP.push_back(pMom);
217  colTH.push_back(lastTH);
218  colCS.push_back(lastCS);
219  return lastCS*millibarn;
220  } // End of creation of the new set of parameters
221  else
222  {
223  colP[lastI]=pMom;
224  colCS[lastI]=lastCS;
225  }
226  return lastCS*millibarn;
227 }
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 G4ChipsPionMinusElasticXS::GetExchangeT ( G4int  tZ,
G4int  tN,
G4int  pPDG 
)

Definition at line 602 of file G4ChipsPionMinusElasticXS.cc.

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

Referenced by G4ChipsElasticModel::SampleInvariantT().

603 {
604  static const G4double GeVSQ=gigaelectronvolt*gigaelectronvolt;
605  static const G4double third=1./3.;
606  static const G4double fifth=1./5.;
607  static const G4double sevth=1./7.;
608  if(PDG!=-211)G4cout<<"Warning*G4ChipsPionMinusElasticXS::GetExT:PDG="<<PDG<<G4endl;
609  if(onlyCS)G4cout<<"Warning*G4ChipsPionMinusElasticXS::GetExchanT:onlyCS=1"<<G4endl;
610  if(lastLP<-4.3) return lastTM*GeVSQ*G4UniformRand();// S-wave for p<14 MeV/c (kinE<.1MeV)
611  G4double q2=0.;
612  if(tgZ==1 && tgN==0) // ===> p+p=p+p
613  {
614  G4double E1=lastTM*theB1;
615  G4double R1=(1.-std::exp(-E1));
616  G4double E2=lastTM*theB2;
617  G4double R2=(1.-std::exp(-E2*E2*E2));
618  G4double E3=lastTM*theB3;
619  G4double R3=(1.-std::exp(-E3));
620  G4double I1=R1*theS1/theB1;
621  G4double I2=R2*theS2;
622  G4double I3=R3*theS3;
623  G4double I12=I1+I2;
624  G4double rand=(I12+I3)*G4UniformRand();
625  if (rand<I1 )
626  {
627  G4double ran=R1*G4UniformRand();
628  if(ran>1.) ran=1.;
629  q2=-std::log(1.-ran)/theB1;
630  }
631  else if(rand<I12)
632  {
633  G4double ran=R2*G4UniformRand();
634  if(ran>1.) ran=1.;
635  q2=-std::log(1.-ran);
636  if(q2<0.) q2=0.;
637  q2=std::pow(q2,third)/theB2;
638  }
639  else
640  {
641  G4double ran=R3*G4UniformRand();
642  if(ran>1.) ran=1.;
643  q2=-std::log(1.-ran)/theB3;
644  }
645  }
646  else
647  {
648  G4double a=tgZ+tgN;
649  G4double E1=lastTM*(theB1+lastTM*theSS);
650  G4double R1=(1.-std::exp(-E1));
651  G4double tss=theSS+theSS; // for future solution of quadratic equation (imediate check)
652  G4double tm2=lastTM*lastTM;
653  G4double E2=lastTM*tm2*theB2; // power 3 for lowA, 5 for HighA (1st)
654  if(a>6.5)E2*=tm2; // for heavy nuclei
655  G4double R2=(1.-std::exp(-E2));
656  G4double E3=lastTM*theB3;
657  if(a>6.5)E3*=tm2*tm2*tm2; // power 1 for lowA, 7 (2nd) for HighA
658  G4double R3=(1.-std::exp(-E3));
659  G4double E4=lastTM*theB4;
660  G4double R4=(1.-std::exp(-E4));
661  G4double I1=R1*theS1;
662  G4double I2=R2*theS2;
663  G4double I3=R3*theS3;
664  G4double I4=R4*theS4;
665  G4double I12=I1+I2;
666  G4double I13=I12+I3;
667  G4double rand=(I13+I4)*G4UniformRand();
668  if(rand<I1)
669  {
670  G4double ran=R1*G4UniformRand();
671  if(ran>1.) ran=1.;
672  q2=-std::log(1.-ran)/theB1;
673  if(std::fabs(tss)>1.e-7) q2=(std::sqrt(theB1*(theB1+(tss+tss)*q2))-theB1)/tss;
674  }
675  else if(rand<I12)
676  {
677  G4double ran=R2*G4UniformRand();
678  if(ran>1.) ran=1.;
679  q2=-std::log(1.-ran)/theB2;
680  if(q2<0.) q2=0.;
681  if(a<6.5) q2=std::pow(q2,third);
682  else q2=std::pow(q2,fifth);
683  }
684  else if(rand<I13)
685  {
686  G4double ran=R3*G4UniformRand();
687  if(ran>1.) ran=1.;
688  q2=-std::log(1.-ran)/theB3;
689  if(q2<0.) q2=0.;
690  if(a>6.5) q2=std::pow(q2,sevth);
691  }
692  else
693  {
694  G4double ran=R4*G4UniformRand();
695  if(ran>1.) ran=1.;
696  q2=-std::log(1.-ran)/theB4;
697  if(a<6.5) q2=lastTM-q2; // u reduced for lightA (starts from 0)
698  }
699  }
700  if(q2<0.) q2=0.;
701  if(!(q2>=-1.||q2<=1.)) G4cout<<"*NAN*G4QElasticCrossSect::GetExchangeT: -t="<<q2<<G4endl;
702  if(q2>lastTM)
703  {
704  q2=lastTM;
705  }
706  return q2*GeVSQ;
707 }
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 G4ChipsPionMinusElasticXS::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 145 of file G4ChipsPionMinusElasticXS.cc.

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

149 {
150  G4double pMom=Pt->GetTotalMomentum();
151  G4int tgN = A - tgZ;
152 
153  return GetChipsCrossSection(pMom, tgZ, tgN, -212);
154 }
G4int
int G4int
Definition: G4Types.hh:78
G4DynamicParticle::GetTotalMomentum
G4double GetTotalMomentum() const
G4ChipsPionMinusElasticXS::GetChipsCrossSection
virtual G4double GetChipsCrossSection(G4double momentum, G4int Z, G4int N, G4int pdg)
Definition: G4ChipsPionMinusElasticXS.cc:156
G4double
double G4double
Definition: G4Types.hh:76
G4bool G4ChipsPionMinusElasticXS::IsIsoApplicable ( const G4DynamicParticle *  Pt,
G4int  Z,
G4int  A,
const G4Element *  elm,
const G4Material *  mat 
)
virtual

Reimplemented from G4VCrossSectionDataSet.

Definition at line 134 of file G4ChipsPionMinusElasticXS.cc.

References G4DynamicParticle::GetDefinition(), and G4PionMinus::PionMinus().

137 {
138  G4ParticleDefinition* particle = Pt->GetDefinition();
139  if (particle == G4PionMinus::PionMinus() ) return true;
140  return false;
141 }
G4DynamicParticle::GetDefinition
G4ParticleDefinition * GetDefinition() const
G4PionMinus::PionMinus
static G4PionMinus * PionMinus()
Definition: G4PionMinus.cc:98
The documentation for this class was generated from the following files:
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