RE: MGDRAW Directional Cosines

From: Chris Theis <>
Date: Wed, 25 Jan 2012 10:01:28 +0100

Dear John,

we have developed a plugin for SimpleGeo which allows to animate particle
tracks/segments as a function of time, taking the velocity etc. into account.
Therefore, we have some code which extracts most of the information that you
should need. In case you're interested just let me know and I can make
the respective parts available to you.


>> Vasilis et al., the ultimate goal is to use FLUKA to characterize
>> synchrotron and ck radiation in the radio frequency regime for EM
>> energy showers in different materials and magnetic fields. It was my
>> hope the necessary kinematic parameters could be extracted from
>> MGDRAW as input to a RF Yield function (the Lienard--Wiechart
>> potentials) such that each track segment could be transform to an
>> E-field element at given location relative to the shower. Summing all
>> the track segment contributions should produce the expected E-field pulse in the time domain of course.
>> The list of parameters needed to do this:
>> 1) X, Y, Z values at each track segment end-point (XTRACK, YTRACK,
>> 2) Velocity vector at each track end-point
>> 3) Particle Time/Age at each track end-point (ATRACK for each
>> end-point)
>> 4) Curved path between each track segment end-point (CTRCK for each
>> segment)
>> 5) Electric charge of the particle "ICHRGE(JTRACK)"
>> Is there a way to extract these values ?? I realize this can be done
>> within GEANT, but for comparison purposes, I would like to perform
>> this calculation in FLUKA if possible. Any help would be appreciated.
>> Thanks, John
Received on Wed Jan 25 2012 - 10:39:02 CET

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