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Re: A question on wired4 [message #1213 is a reply to message #1212] Mon, 15 October 2007 12:20 Go to previous message
NormanGraf
Messages: 80
Registered: January 2004
Hello Hyunok,
The compact detector description is intended to be just that, a compact description. Therefore, some convenience methods are built into the definitions. For instance, in order to simply define a forward tracker, we allow the user to also define a backward tracker as the mirror image by providing the "reflect" keyword. This simply means that the existing detector will be reflected in z.
"sensitive" means that SimTrackerHits (or SimCalorimeterHits) will be created for any energy deposition by a track as it steps through this volume.
Geant4 can take several steps through each individual volume, and the default action is to create a SimTrackerHit for each step. Sometimes this is not the desired behavior, so the "combineHits" command allows all hits created by a single MC track traversing a sensitive volume to be combined into one hit with the average position, time and energy deposition.
Please let us know if you have any further questions.
Norman
 
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