[Gate-users] meaning of special cuts commands

Grevillot Loic loic.grevillot at medaustron.at
Fri Jun 6 09:45:59 CEST 2014

Hi Cheng,

You right, below MinRange or MinEnergy, the tracking of the particle is stopped and energy is deposited locally.
Geant4 uses "cuts" in distance: as you define geometries in mm/cm, it is easier to define consistent "cuts" in distances.
However, there is obviously a correlation between particle range and particle kinetic energy and if preferred, you can use "cuts" in energy.
This is also useful for cross comparisons with other MC codes which define "cuts" in energy only.

Hope this helps.

From: gate-users-bounces at lists.opengatecollaboration.org [mailto:gate-users-bounces at lists.opengatecollaboration.org] On Behalf Of Cheng Xu
Sent: Freitag, 6. Juni 2014 09:12
To: Gate Users
Subject: [Gate-users] meaning of special cuts commands

Dear all,

I want to use special cuts to increase the speed of simulations, but not really sure the meaning of two commands, could anyone explain to me about them? Thanks in advance!

What is the min kinetic energy? does that mean if the energy of a particle lower than this value, it would stop and be absorbed?

And what is the min remaining range?

Best regards,


/gate/physics/SetMinKineticEnergyInRegion world 1 keV

/gate/physics/SetMinRemainingRangeInRegion world 0.02 mm

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