Gabriele Cosmo
81 lines
2.0 KiB
Plaintext
81 lines
2.0 KiB
Plaintext
#
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# Macro file for the initialization phase of field01
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#
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# It creates the default geometry (simple absorber cylinder )
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#
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/tracking/verbose 1
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/run/verbose 1
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#
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# ****** Start of initialisation of classes for field propagation
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# Change the type of stepper used to integrate the ODE of motion
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#
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#/field/setStepperType 45
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#
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# Recommended - new in Geant4 10.3-beta:
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# 15 - Dormand Prince 745 : well-known and very efficient embedded method
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# Highly recommended in literature, e.g. Hairer,
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# Numerical Recipes
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# Used in several RK programs (e.g. DOPRI5 code)
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#
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# Good choices for reasonably smooth fields - available since Geant4 1.0
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# 8 - Cash Karp RKF 45 : 'embedded' RK method - 4th/5th faster, robust
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# ( uses difference of 4th & 5th order for error estimate )
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#
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# Default - good choice for unknown fields
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# 4 - ClassicalRK4 : original Runge-Kutta method, very robust but slower )
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# ( obtains error estimate by doing 2 half steps )
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#
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# Good choices for non-smooth fields:
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# 3 - SimpleHeum : low order, with error obtained from half-steps
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# 23 - BogackiShampine23 : lower order embedded method (new in 10.3-beta)
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#
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#
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# Control the mininum step size for integration in field
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#
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/field/setMinStep 0.1 mm
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#
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# Initialise the field classes - parameters, stepper, ...
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#
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/field/update
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#
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# ****** Initialisation of classes for field propagation is done
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#
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/run/initialize
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#
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# /run/particle/dumpCutValues
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#
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/gun/particle e-
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#
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# /gun/particle proton
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# /gun/particle chargedgeantino
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#
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/gun/energy 500.0 MeV
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/run/beamOn 1
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#
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/gun/energy 250.0 MeV
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/run/beamOn 1
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#
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/gun/energy 200.0 MeV
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/run/beamOn 1
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#
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/gun/energy 100.0 MeV
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/run/beamOn 1
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#
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/gun/energy 50.0 MeV
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/run/beamOn 1
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#
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# Change the value of the B-field
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#
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/field/update
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/field/setFieldZ 1.0 kG
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#
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#
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#
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/gun/energy 500.0 MeV
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/tracking/verbose 1
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/run/beamOn 1
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/tracking/verbose 0
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/run/printProgress 10
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/run/beamOn 100
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