Gabriele Cosmo
64 lines
2.4 KiB
C++
64 lines
2.4 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4QuadrupoleMagField.hh,v 1.3 2003/10/31 14:35:52 gcosmo Exp $
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// GEANT4 tag $Name: geant4-06-00-patch-01 $
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//
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//
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// class G4QuadrupoleMagField
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//
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// Class description:
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//
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// Class for creation of quadrupole magnetic field
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// fGradient - is the gradient value for quadrupole magnetic lense.
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// Then the magnetic field components are:
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// Bx = B[0] = fGradient*X ,
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// By = B[1] = fGradient*Y ,
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// Bz = B[2] = 0 .
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// Here X,Y,Z are the coordinates of a space point of interest.
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// History:
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// 3.2.97 - V.Grichine, created.
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// -------------------------------------------------------------------
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#ifndef G4QUADRUPOLEMAGFIELD_HH
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#define G4QUADRUPOLEMAGFIELD_HH
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#include "G4MagneticField.hh"
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class G4QuadrupoleMagField : public G4MagneticField
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{
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public: // with description
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G4QuadrupoleMagField(G4double pGradient);
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~G4QuadrupoleMagField();
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void GetFieldValue(const G4double yTrack[],
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G4double B[] ) const;
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private:
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G4double fGradient;
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};
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#endif
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