|Message: Re: QGSP_BERT_HP time cut for neutrons||Not Logged In (login)|
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On Wed, 30 Apr 2014 10:01:32 GMT, filippo wrote:
Is there a time cut for neutrons in (default) QGSP_BERT_HP? I mean, neutrons are tracked to an infinite time or the tracking stops after a given time? If yes, how can I increase this time?Many, but not all, physics lists have a NeutronKiller process included (I'm pretty sure QGSP_BERT is one of them). The default is, I believe, 10 microsec. You can change it's limits with the following UI lines:
# Set time after which to kill neutrons; pick a long time (needs units). # One can also set a minimum energy for the neutron (kill the neutron # if its KineticEnergy falls below the set value). # This command is valid for most (but *not* all) physics lists, # in particular LHEP doesn't support it and it will cause a # **** COMMAND NOT FOUND ***** # **** Batch is interrupted!! ***** # message when run on such a list. /physics_engine/neutron/timeLimit 515000.0 ns /physics_engine/neutron/energyLimit 0.0 GeV
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