RE: MGDRAW Directional Cosines

From: Vasilis Vlachoudis <>
Date: Thu, 12 Jan 2012 09:05:27 +0000

Hi John,
indeed multiple scattering will change the original incoming direction,
however the original direction is not kept it FLUKA but rather the C[XYZ]TRCK
contain the direction at the end of the step or for beginning of the next step.
Therefore I would suggest to store this information for each particle, maybe
the best place would be the user variables that are carried along each particle
(SPAREK, ISPARK). You initialize them on the creation of the particle inside
the routines like STUPRF STUPRE and update them after each step in MGDRAW

Vasilis Vlachoudis
CH-1211 GENEVA 23

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Received on Thu Jan 12 2012 - 10:41:08 CET

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