[Gate-users] Number of particles

lorenzo.mercolli at lhep.unibe.ch lorenzo.mercolli at lhep.unibe.ch
Fri Feb 21 08:08:24 CET 2020

Dear Kyu

10^9 primary particles is a limit set by Geant4. You'll find some comments on this and a possible work around in a previous post on the mailing list.




From: Gate-users <gate-users-bounces at lists.opengatecollaboration.org> on behalf of Oh, Kyuhak <koh39 at illinois.edu>
Sent: Thursday, February 20, 2020 3:54:20 AM
To: gate-users at lists.opengatecollaboration.org
Subject: [Gate-users] Number of particles

I am designing voxels for dose profile in water phantom which size is 2 X 2 X 2 mm^3.
I made the number of particles as 10^9, but there were many errors.
The graph was very fluctuating.

I tried to increase the number of particles as 10^10, but it is not working.
Is there limitation for the number of particles?
Is there any solution for increasing the number of particles?

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