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Forum: Event and Track Management
Re: None General Particle source : Gun Alignement (noaimi)
Re: Feedback Re: General Particle source : Gun Alignement (Gumplinger Peter)
Date: 01 Dec, 2011
From: noaimi <noaimi>

Hi Peter,

Thank you so much for your reply. This tread helped me a lot, the spherical isotropic beam is now in the correct direction, i get now a fraction of neutrons after my setting geometry "collimator". But when i try to verify the position of the mother particles i get a strange parameter which i don't understand well, here are my settings:

#source spherique /gps/particle neutron

/gps/pos/type Volume

/gps/pos/shape Sphere

/gps/pos/centre 0. -50. 0. mm /gps/pos/radius 0.1 mm /gps/ang/type iso /gps/direction 0. 0. 1.

And i got something like (positions are for mother particles):

>>> Event 20
    21 trajectories stored in this event.
HepRepFile writing to G4Data20.heprep
position = 0.0691829 -49.9684  3999.93
>>> Event 21
    48 trajectories stored in this event.
HepRepFile writing to G4Data21.heprep
position = -0.0193878 -50.0564  3999.93
>>> Event 22
    2 trajectories stored in this event.
HepRepFile writing to G4Data22.heprep
position = -0.0907053 -49.9872  3999.93
>>> Event 23
    7 trajectories stored in this event.
HepRepFile writing to G4Data23.heprep
position = 0.0604199 -49.9388  3999.93

Please, do you have an idea why the z position have the same value "3999.93" for all events?

Many thanks Naima

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1 Feedback: Re: General Particle source : Gun Alignement   (Giovanni Santin - 06 Dec, 2011)
(_ Feedback: Re: General Particle source : Gun Alignement   (noaimi - 07 Dec, 2011)
(_ Disagree: Re: General Particle source : Gun Alignement   (Gumplinger Peter - 07 Dec, 2011)
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