| 1 | //
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| 2 | // ********************************************************************
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| 3 | // * License and Disclaimer *
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| 4 | // * *
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
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| 7 | // * conditions of the Geant4 Software License, included in the file *
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
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| 9 | // * include a list of copyright holders. *
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| 10 | // * *
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| 11 | // * Neither the authors of this software system, nor their employing *
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| 12 | // * institutes,nor the agencies providing financial support for this *
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| 13 | // * work make any representation or warranty, express or implied, *
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| 14 | // * regarding this software system or assume any liability for its *
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| 15 | // * use. Please see the license in the file LICENSE and URL above *
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| 16 | // * for the full disclaimer and the limitation of liability. *
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| 17 | // * *
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| 18 | // * This code implementation is the result of the scientific and *
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| 19 | // * technical work of the GEANT4 collaboration. *
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| 20 | // * By using, copying, modifying or distributing the software (or *
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| 21 | // * any work based on the software) you agree to acknowledge its *
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| 22 | // * use in resulting scientific publications, and indicate your *
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| 23 | // * acceptance of all terms of the Geant4 Software license. *
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| 24 | // ********************************************************************
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| 25 | //
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| 26 | //
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| 27 | // $Id: G4QuadrupoleMagField.hh,v 1.3 2006/06/29 18:26:52 gunter Exp $
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| 28 | // GEANT4 tag $Name: HEAD $
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| 29 | //
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| 30 |
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| 31 |
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| 32 | // Class for creation of quadrupole magnetic field
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| 33 | // fGradient - is gardient value for quadrupole magnetic lense. Then the magnetic
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| 34 | // field components are:
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| 35 | // Bx = B[0] = fGradient*X ,
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| 36 | // By = B[1] = fGradient*Y ,
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| 37 | // Bz = B[2] = 0 .
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| 38 | // Here X,Y,Z are the coordinates of a space point of interest.
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| 39 | //
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| 40 | // 3.2.97 V.Grichine
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| 41 |
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| 42 | #ifndef G4QUADRUPOLEMAGFIELD_HH
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| 43 | #define G4QUADRUPOLEMAGFIELD_HH
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| 44 |
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| 45 | #include "globals.hh"
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| 46 | #include "G4MagneticField.hh"
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| 47 | #include "G4Mag_EqRhs.hh"
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| 48 |
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| 49 | class G4QuadrupoleMagField : public G4MagneticField
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| 50 | {
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| 51 | public:
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| 52 |
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| 53 | G4QuadrupoleMagField(G4double pGradient) ;
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| 54 |
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| 55 | ~G4QuadrupoleMagField() ;
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| 56 |
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| 57 | void MagneticField(const G4double yTrack[] ,
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| 58 | G4double B[] ) ;
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| 59 |
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| 60 |
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| 61 | protected:
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| 62 |
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| 63 | private:
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| 64 | G4double fGradient ;
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| 65 |
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| 66 | } ;
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| 67 |
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| 68 | #endif
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