BDSIM
BDSIM is a Geant4 extension toolkit for simulation of particle transport in accelerator beamlines.
BDSIntegratorDecapole.hh
1/*
2Beam Delivery Simulation (BDSIM) Copyright (C) Royal Holloway,
3University of London 2001 - 2022.
4
5This file is part of BDSIM.
6
7BDSIM is free software: you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published
9by the Free Software Foundation version 3 of the License.
10
11BDSIM is distributed in the hope that it will be useful, but
12WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with BDSIM. If not, see <http://www.gnu.org/licenses/>.
18*/
19#ifndef BDSINTEGRATORDECAPOLE_H
20#define BDSINTEGRATORDECAPOLE_H
21
22#include "BDSIntegratorEulerOld.hh"
23
24#include "globals.hh"
25
26class G4Mag_EqRhs;
28
36{
37public:
39 G4double brho,
40 G4Mag_EqRhs* eqOfMIn);
41
42 virtual ~BDSIntegratorDecapole(){;}
43
44protected:
46 virtual void AdvanceHelix(const G4double yIn[],
47 G4double h,
48 G4double yDec[],
49 G4double yErr[]);
50
51private:
54
57};
58
59#endif
Integrator for Decapolar field.
G4double bQuadruplePrime
4th derivative of magnetic field
virtual void AdvanceHelix(const G4double yIn[], G4double h, G4double yDec[], G4double yErr[])
Calculate the new particle coordinates.
BDSIntegratorDecapole()=delete
Private default constructor to enforce use of supplied constructor.
Common functionality for Euler integrators.
Efficient storage of magnet strengths.