63 lines
2.1 KiB
C++
63 lines
2.1 KiB
C++
// Geant4 simulation for MuSR
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// AUTHOR: Toni SHIROKA, Paul Scherrer Institut, PSI
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// DATE : 2008-05
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//
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#ifndef lem4TabulatedElementField2D_h
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#define lem4TabulatedElementField2D_h 1
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#include "globals.hh"
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////#include "G4MagneticField.hh"
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#include "F04ElementField.hh"
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#include "F04GlobalField.hh"
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#include "G4ios.hh"
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#include <fstream>
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#include <vector>
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#include <cmath>
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class lem4TabulatedElementField2D : public F04ElementField
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{
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public:
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lem4TabulatedElementField2D(const char* filename, G4double fieldValue, G4double lenUnit, G4double fieldNormalisation, G4LogicalVolume* logVolume, G4ThreeVector positionOfTheCenter);
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// "lenUnit" is the unit in which the grid coordinates are specified in the table
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// "fieldNormalisation" is the normalisation that has to be applied on the field values in the table
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// such that the values correspond do 1T nominal value
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// "fieldValue" is the field value (in T) that is required (i.e. values normalised to 1T will be
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// multiplied by this value).
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/// Destructor.
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virtual ~lem4TabulatedElementField2D() {}
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/// addFieldValue() adds the field for this solenoid into field[].
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/// point[] is in global coordinates.
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void addFieldValue( const G4double Point[4], G4double* field) const;
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G4double GetNominalFieldValue();
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void SetNominalFieldValue(G4double newFieldValue);
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// getWidth(), getHeight(), getLength(), return the dimensions of the field
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// (used to define the boundary of the field)
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virtual G4double getWidth() { return 2*dx; } // x coordinate
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virtual G4double getHeight() { return 2*dx; } // y coordinate
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virtual G4double getLength() { return 2*dz; } // z coordinate
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private:
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// Storage space for the table
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std::vector< std::vector< double > > xField;
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std::vector< std::vector< double > > zField;
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// The dimensions of the table
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int nx,nz;
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// The physical limits of the defined region
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double minimumx, maximumx, minimumz, maximumz;
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// The physical extent of the defined region
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double dx, dz;
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double ffieldValue;
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void Invert(const char* indexToInvert);
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};
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#endif
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