|Message: Re: cold neutron spin tracking||Not Logged In (login)|
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> G4Mag_EqRhs* fEq = new G4Mag_SpinEqRhs(field);
Why don't you use the derived glass pointer:
G4Mag_SpinEqRhs* fEq = new G4Mag_SpinEqRhs(field);
> G4MagIntegratorStepper* stepper = new G4ClassicalRK4(fEq, 12);
yes, you need the 12
> > min = 1.0e-10 * m; > > fieldmgr = new G4FieldManager(field); > fieldmgr->SetDeltaOneStep( min );
Don't know what difference it makes but I have code that uses:
> fieldmgr->SetMaximumEpsilonStep( 10e-10 ); > > G4ChordFinder* chordFinder = new G4ChordFinder(field, min, stepper); > > charybdisFMgr->SetChordFinder(chordFinder);
Should you be able to work with one global field this is a good (but complicated) example:
Even if you can't and you have to associate a fieldmgr to a logical volume, this and the simpler field05 example contain code fragments useful for setting up spin tracking.
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