Message: Re: Low energy muons - how to limit their step length Not Logged In (login)
 Next-in-Thread Next-in-Thread
 Next-in-Forum Next-in-Forum

Idea Re: Low energy muons - how to limit their step length 

Forum: Electromagnetic Processes
Re: Question Low energy muons - how to limit their step length (Kamil Sedlak)
Date: Oct 09, 03:19
From: Vladimir Ivanchenko <Vladimir Ivanchenko>

Hello Kamil,

Few short comments:

1) In Geant4 there is no cuts for muons

2) In general Geant4 cuts are th eproduction thresholds for secondary particles - gamma, e+, e-. The value is expressed in range

3) The range cut is unique for the detector, the default value 1 mm means that Geant4 by default trying to reproduce energy deposition in space with an accuracy of 1 mm

4) In your concrete application the default Geant4 should simulate muon in one step that what you do not want. There are several ways to make reliable simulation:
       - use step limit active inside Cu target, optimise its value
       - use SteppingFunction
       - use G4EmStandardPhysics_option3 EM constructor

Please, visit Geant4 extended examples allowing to play little bit with parameters. You may start from $G4INSTALL/examples/extended/electromagnetic/TestEm7

Running this example you can find optimisation for your simulation.

VI

 Add Message Add Message
to: "Re: Low energy muons - how to limit their step length"

 Subscribe Subscribe

This site runs SLAC HyperNews version 1.11-slac-98, derived from the original HyperNews


[ Geant 4 Home | Geant 4 HyperNews | Search | Request New Forum | Feedback ]