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G4hhIonisation.cc
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26 // $Id: G4hhIonisation.cc 97391 2016-06-02 10:08:45Z gcosmo $
27 //
28 // -------------------------------------------------------------------
29 //
30 // GEANT4 Class file
31 //
32 //
33 // File name: G4hhIonisation
34 //
35 // Author: Vladimir Ivanchenko
36 //
37 // Creation date: 30.09.2005
38 //
39 // Modifications:
40 // 10-01-06 SetStepLimits -> SetStepFunction (V.Ivantchenko)
41 // 27-10-06 Add maxKinEnergy (V.Ivantchenko)
42 //
43 //
44 // -------------------------------------------------------------------
45 //
46 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
47 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
48 
49 #include "G4hhIonisation.hh"
50 #include "G4PhysicalConstants.hh"
51 #include "G4SystemOfUnits.hh"
52 #include "G4BraggNoDeltaModel.hh"
54 #include "G4ICRU73NoDeltaModel.hh"
56 #include "G4BohrFluctuations.hh"
57 #include "G4IonFluctuations.hh"
58 #include "G4UnitsTable.hh"
59 #include "G4Electron.hh"
60 #include "G4EmParameters.hh"
61 
62 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
63 
65  : G4VEnergyLossProcess(name),
66  theParticle(nullptr),
67  //theBaseParticle(nullptr),
68  isInitialised(false)
69 {
70  SetStepFunction(0.1, 0.1*mm);
71  SetVerboseLevel(1);
74  mass = 0.0;
75  ratio = 0.0;
76  flucModel = nullptr;
77 }
78 
79 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
80 
82 {}
83 
84 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
85 
87 {
88  return (p.GetPDGCharge() != 0.0 && p.GetPDGMass() > 100.0*MeV &&
89  !p.IsShortLived());
90 }
91 
92 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
93 
95  const G4Material*,
96  G4double cut)
97 {
98  G4double x = 0.5*cut/electron_mass_c2;
99  G4double y = electron_mass_c2/mass;
100  G4double gam = x*y + std::sqrt((1. + x)*(1. + x*y*y));
101  return mass*(gam - 1.0);
102 }
103 
104 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
105 
107  const G4ParticleDefinition* part,
108  const G4ParticleDefinition* bpart)
109 {
110  if(isInitialised) { return; }
111 
112  theParticle = part;
113  if(bpart) {
114  G4cout << "G4hhIonisation::InitialiseEnergyLossProcess WARNING: no "
115  << "base particle should be defined for the process "
116  << GetProcessName() << G4endl;
117  }
118  SetBaseParticle(0);
119  mass = theParticle->GetPDGMass();
120  ratio = electron_mass_c2/mass;
121  G4double eth = 2*MeV*mass/proton_mass_c2;
122  flucModel = new G4IonFluctuations();
123 
125  G4double emin = std::min(param->MinKinEnergy(), 0.1*eth);
126  G4double emax = std::max(param->MaxKinEnergy(), 100*eth);
127 
128  SetMinKinEnergy(emin);
129  SetMaxKinEnergy(emax);
130  G4int bin = G4lrint(param->NumberOfBinsPerDecade()*std::log10(emax/emin));
131  SetDEDXBinning(bin);
132 
133  G4VEmModel* em = nullptr;
134  if(part->GetPDGCharge() > 0.0) { em = new G4BraggNoDeltaModel(); }
135  else { em = new G4ICRU73NoDeltaModel(); }
136  em->SetLowEnergyLimit(emin);
137  em->SetHighEnergyLimit(eth);
138  AddEmModel(1, em, flucModel);
139 
140  em = new G4BetheBlochNoDeltaModel();
141  em->SetLowEnergyLimit(eth);
142  em->SetHighEnergyLimit(emax);
143  AddEmModel(1, em, flucModel);
144 
145  if(verboseLevel>1) {
146  G4cout << "G4hhIonisation is initialised" << G4endl;
147  }
148  isInitialised = true;
149 }
150 
151 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
152 
154 {
155  G4cout << " Delta-ray will not be produced; "
156  << G4endl;
157 }
158 
159 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
virtual ~G4hhIonisation()
G4int NumberOfBinsPerDecade() const
const XML_Char * name
Definition: expat.h:151
G4double MaxKinEnergy() const
static constexpr double mm
Definition: G4SIunits.hh:115
G4int verboseLevel
Definition: G4VProcess.hh:368
tuple bin
Definition: plottest35.py:22
const char * p
Definition: xmltok.h:285
virtual void PrintInfo() override
tuple x
Definition: test.py:50
virtual G4double MinPrimaryEnergy(const G4ParticleDefinition *p, const G4Material *, G4double cut) override
int G4int
Definition: G4Types.hh:78
void SetStepFunction(G4double v1, G4double v2, G4bool lock=true)
void SetHighEnergyLimit(G4double)
Definition: G4VEmModel.hh:732
void AddEmModel(G4int, G4VEmModel *, G4VEmFluctuationModel *fluc=0, const G4Region *region=nullptr)
G4GLOB_DLL std::ostream G4cout
virtual G4bool IsApplicable(const G4ParticleDefinition &p) override
bool G4bool
Definition: G4Types.hh:79
void SetProcessSubType(G4int)
Definition: G4VProcess.hh:432
float proton_mass_c2
Definition: hepunit.py:275
void SetMaxKinEnergy(G4double e)
float electron_mass_c2
Definition: hepunit.py:274
G4double MinKinEnergy() const
const G4String & GetProcessName() const
Definition: G4VProcess.hh:408
void SetSecondaryParticle(const G4ParticleDefinition *p)
static const G4double emax
G4double GetPDGMass() const
int G4lrint(double ad)
Definition: templates.hh:163
T max(const T t1, const T t2)
brief Return the largest of the two arguments
static G4EmParameters * Instance()
T min(const T t1, const T t2)
brief Return the smallest of the two arguments
G4hhIonisation(const G4String &name="hhIoni")
static G4Electron * Electron()
Definition: G4Electron.cc:94
#define G4endl
Definition: G4ios.hh:61
static constexpr double MeV
Definition: G4SIunits.hh:214
virtual void InitialiseEnergyLossProcess(const G4ParticleDefinition *, const G4ParticleDefinition *) override
double G4double
Definition: G4Types.hh:76
void SetLowEnergyLimit(G4double)
Definition: G4VEmModel.hh:739
G4double GetPDGCharge() const
void SetBaseParticle(const G4ParticleDefinition *p)
void SetVerboseLevel(G4int value)
Definition: G4VProcess.hh:437
void SetDEDXBinning(G4int nbins)
void SetMinKinEnergy(G4double e)